Hard Drives (HDD)
Ranked by price per gigabyte
Updated twice daily · No paid placements
Prices refresh twice daily; the final price appears at the retailer's checkout. We may earn a commission from retailer links, at no cost to you; it never affects rankings.
| Rank | Type | Trend | |||||||
|---|---|---|---|---|---|---|---|---|---|
1 | HDD | 2TB | — | $52.95checked 5h ago | $0.026View at Newegg | ||||
2 | HDD | 6 TB | — | $179.99checked 6h ago | $0.030View at Amazon | ||||
3 | HDD | 8TB | — | $249.99checked 5h ago | $0.031View at Newegg | ||||
4 | HDD | 8 TB | — | $249.99checked 6h ago | $0.031View at Amazon | ||||
5 | HDD | 18TB | — | $570.19checked 5h ago | $0.032View at Newegg | ||||
6 | HDD | 16 TB | — | $509.99checked 6h ago | $0.032View at Amazon | ||||
7 | HDD | 16 TB | — | $509.99checked 6h ago | $0.032View at Best Buy | ||||
8 | HDD | 22TB | — | $709.00checked 5h ago | $0.032View at Newegg | ||||
9 | HDD | 16TB | — | $526.58checked 5h ago | $0.033View at Newegg | ||||
10 | HDD | 12TB | — | $400.00checked 5h ago | $0.033View at Newegg | ||||
11 | HDD | 8 TB | — | 4.3(7) | $269.99checked 6h ago | $0.034View at Best Buy | |||
12 | HDD | 8TB | — | $275.00checked 5h ago | $0.034View at Newegg | ||||
13 | HDD | 6 TB | — | $209.99checked 6h ago | $0.035View at Amazon | ||||
14 | HDD | 8TB | — | $279.99checked 5h ago | $0.035View at Newegg | ||||
15 | HDD | 14TB | — | $490.10checked 5h ago | $0.035View at Newegg | ||||
16 | HDD | 14TB | — | $495.99checked 29h ago | $0.035View at Newegg | ||||
17 | HDD | 4TB | — | $142.40checked 5h ago | $0.036View at Newegg | ||||
18 | HDD | 14TB | — | $498.99checked 29h ago | $0.036View at Newegg | ||||
19 | HDD | 12TB | — | $429.99checked 17h ago | $0.036View at Newegg | ||||
20 | HDD | 14TB | — | $503.99checked 5h ago | $0.036View at Newegg | ||||
21 | HDD | 20 TB | — | $719.99checked 6h ago | $0.036View at Amazon | ||||
22 | HDD | 20TB | — | $719.99checked 5h ago | $0.036View at Newegg | ||||
23 | HDD | 3TB | — | $108.19checked 5h ago | $0.036View at Newegg | ||||
24 | HDD | 16 TB | — | $579.99checked 6h ago | $0.036View at Amazon | ||||
25 | HDD | 16TB | — | $579.99checked 5h ago | $0.036View at Newegg | ||||
26 | HDD | 16TB | — | $579.99checked 5h ago | $0.036View at Newegg | ||||
27 | HDD | 14TB | — | $508.10checked 5h ago | $0.036View at Newegg | ||||
28 | HDD | 14TB | — | $510.50checked 5h ago | $0.036View at Newegg | ||||
29 | HDD | 2TB | — | $74.00checked 5h ago | $0.037View at Newegg | ||||
30 | HDD | 14TB | — | $518.89checked 5h ago | $0.037View at Newegg | ||||
31 | HDD | 12 TB | — | $445.00checked 6h ago | $0.037View at Amazon | ||||
32 | HDD | 4 TB | — | $149.99checked 6h ago | $0.037View at Amazon | ||||
33 | HDD | 16TB | — | $599.99checked 29h ago | $0.037View at Newegg | ||||
34 | HDD | 8 TB | — | $299.99checked 6h ago | $0.037View at Amazon | ||||
35 | HDD | 12TB | — | $449.99checked 5h ago | $0.037View at Newegg | ||||
36 | HDD | 4TB | — | $150.00checked 5h ago | $0.037View at Newegg | ||||
37 | HDD | 4TB | — | $150.00checked 5h ago | $0.037View at Newegg | ||||
38 | HDD | 14TB | — | $525.10checked 5h ago | $0.038View at Newegg | ||||
39 | HDD | 6TB | — | $225.10checked 5h ago | $0.038View at Newegg | ||||
40 | HDD | 6TB | — | $227.40checked 5h ago | $0.038View at Newegg | ||||
41 | HDD | 8TB | — | $303.33checked 5h ago | $0.038View at Newegg | ||||
42 | HDD | 14TB | — | $530.99checked 5h ago | $0.038View at Newegg | ||||
43 | HDD | 18TB | — | $684.45checked 5h ago | $0.038View at Newegg | ||||
44 | HDD | 14TB | — | $535.00checked 5h ago | $0.038View at Newegg | ||||
45 | HDD | 14TB | — | $535.00checked 5h ago | $0.038View at Newegg | ||||
46 | HDD | 14TB | — | $535.00checked 5h ago | $0.038View at Newegg | ||||
47 | HDD | 12 TB | — | $459.99checked 6h ago | $0.038View at Amazon | ||||
48 | HDD | 12TB | — | $459.99checked 5h ago | $0.038View at Newegg | ||||
49 | HDD | 14TB | — | $539.00checked 5h ago | $0.038View at Newegg | ||||
50 | HDD | 6TB | — | $231.18checked 5h ago | $0.039View at Newegg | ||||
51 | HDD | 18TB | — | $694.45checked 5h ago | $0.039View at Newegg | ||||
52 | HDD | 24TB | — | $931.10checked 5h ago | $0.039View at Newegg | ||||
53 | HDD | 16TB | — | $622.10checked 5h ago | $0.039View at Newegg | ||||
54 | HDD | 18TB | — | $700.00checked 5h ago | $0.039View at Newegg | ||||
55 | HDD | 3TB | — | $116.99checked 5h ago | $0.039View at Newegg | ||||
56 | HDD | 10TB | — | $394.99checked 5h ago | $0.039View at Newegg | ||||
57 | HDD | 10 TB | — | $394.99checked 6h ago | $0.039View at Amazon | ||||
58 | HDD | 24TB | — | $951.23checked 5h ago | $0.040View at Newegg | ||||
59 | HDD | 3TB | — | $119.00checked 5h ago | $0.040View at Newegg | ||||
60 | HDD | 4TB | — | $158.79checked 17h ago | $0.040View at Newegg | ||||
61 | HDD | 24TB | — | $952.90checked 5h ago | $0.040View at Newegg | ||||
62 | HDD | 14TB | — | $555.99checked 29h ago | $0.040View at Newegg | ||||
63 | HDD | 18TB | — | $715.00checked 5h ago | $0.040View at Newegg | ||||
64 | HDD | 8TB | — | $319.75checked 5h ago | $0.040View at Newegg | ||||
65 | HDD | 3 TB | — | $119.95checked 6h ago | $0.040View at Amazon | ||||
66 | HDD | 4TB | — | $159.99checked 5h ago | $0.040View at Newegg | ||||
67 | HDD | 4TB | — | $159.99checked 5h ago | $0.040View at Newegg | ||||
68 | HDD | 4 TB | — | $159.99checked 6h ago | $0.040View at Amazon | ||||
69 | HDD | 4 TB | — | $159.99checked 6h ago | $0.040View at Amazon | ||||
70 | HDD | 16TB | — | $639.99checked 29h ago | $0.040View at Newegg | ||||
71 | HDD | 4TB | — | $160.00checked 29h ago | $0.040View at Newegg | ||||
72 | HDD | 14TB | — | $563.99checked 5h ago | $0.040View at Newegg | ||||
73 | HDD | 16TB | — | $645.00checked 5h ago | $0.040View at Newegg | ||||
74 | HDD | 16TB | — | $645.00checked 5h ago | $0.040View at Newegg | ||||
75 | HDD | 16TB | — | $645.00checked 5h ago | $0.040View at Newegg | ||||
76 | HDD | 6TB | — | $242.00checked 5h ago | $0.040View at Newegg | ||||
77 | HDD | 18TB | — | $727.99checked 5h ago | $0.040View at Newegg | ||||
78 | HDD | 10TB | — | $404.99checked 5h ago | $0.040View at Newegg | ||||
79 | HDD | 10TB | — | $405.99checked 5h ago | $0.041View at Newegg | ||||
80 | HDD | 8 TB | — | $324.99checked 6h ago | $0.041View at Amazon | ||||
81 | HDD | 8TB | — | $324.99checked 5h ago | $0.041View at Newegg | ||||
82 | HDD | 8 TB | 215 / 215MB/s | 4.3(20) | $324.99checked 6h ago | $0.041View at Best Buy | |||
83 | HDD | 16TB | — | $650.00checked 5h ago | $0.041View at Newegg | ||||
84 | HDD | 16TB | — | $650.00checked 17h ago | $0.041View at Newegg | ||||
85 | HDD | 16TB | — | $651.15checked 5h ago | $0.041View at Newegg | ||||
86 | HDD | 6 TB | 170 / 170MB/s | 4.4(100) | $244.99checked 6h ago | $0.041View at Best Buy | |||
87 | HDD | 6TB | — | $244.99checked 29h ago | $0.041View at Newegg | ||||
88 | HDD | 10TB | — | $409.99checked 5h ago | $0.041View at Newegg | ||||
89 | HDD | 20TB | — | $819.99checked 5h ago | $0.041View at Newegg | ||||
90 | HDD | 14TB | — | $574.45checked 5h ago | $0.041View at Newegg | ||||
91 | HDD | 14TB | — | $575.00checked 5h ago | $0.041View at Newegg | ||||
92 | HDD | 28TB | — | $1150.00checked 29h ago | $0.041View at Newegg | ||||
93 | HDD | 10TB | — | $411.00checked 5h ago | $0.041View at Newegg | ||||
94 | HDD | 14TB | — | $575.99checked 5h ago | $0.041View at Newegg | ||||
95 | HDD | 10TB | — | $412.00checked 5h ago | $0.041View at Newegg | ||||
96 | HDD | 28TB | — | $1153.69checked 5h ago | $0.041View at Newegg | ||||
97 | HDD | 8 TB | — | $329.99checked 6h ago | $0.041View at Amazon | ||||
98 | HDD | 4TB | — | $165.00checked 5h ago | $0.041View at Newegg | ||||
99 | HDD | 4TB | — | $165.00checked 5h ago | $0.041View at Newegg | ||||
100 | HDD | 18TB | — | $745.58checked 5h ago | $0.041View at Newegg |
WD2003FYYS-18W0B0 - DELL WD2003FYYS-18W0B0 DELL 2TB 7.2K 3G LFF SATA HARD DRIVE
WL 6TB 5700RPM 64MB Cache 5700RPM SATA III (6.0Gb/s) 3.5" Internal Hard Drive (Desktop PC, CCTV DVR, NAS) - w/1 Year Warranty
Seagate BarraCuda NE-ST8000DM004 8TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive Bare Drive
Seagate BarraCuda 8 TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s, 5,400 RPM, 256 MB Cache for Computer Desktop PC (ST8000DMZ04/004)
WD Ultrastar DC HC550 18TB Hard Drive 3.5' Internal 512MB SATA 7200 RPM 512E SE NP3 DC HC550 0F38459 (WUH721818ALE6L4)
Seagate 16TB One Touch Desktop Hard Drive | USB-C (STNB16000400)
Seagate - Seagate One Touch Desktop HDD 16TB - Space Gray
TOSHIBA HDWG62CUZSVA 22TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Hard Drive Retail
WD Ultrastar DC HC550 16TB Hard Drive 3.5' Internal 512MB SATA 7200 RPM 512E SE NP3 DC HC550 0F38462 (WUH721816ALE6L4)
Seagate IronWolf ST12000VN0008 12 TB Hard Drive - 3.5' Internal - SATA (SATA/600) (ST12000VN0008) - OEM Pack, International Version No Warranty
Seagate - Seagate One Touch Desktop HDD 8 TB - Space Gray
Seagate BarraCuda NE-ST8000DM004 8TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive Bare Drive
MaxDigitalData 6TB 7200RPM 128MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive for Surveillance (MD6000GSA12872DVR) - 3 Years Warranty
Seagate BarraCuda NE-ST8000DM004 8TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive Bare Drive
Seagate Exos X16 ST14000NM001G 14TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drive
Seagate IronWolf ST14000VN0008 14TB 3.5' SATA 6Gb/s 7200RPM 256MB Cache NAS Internal Hard Drive - New
4TB Toshiba P300 3.5 Inch Serial ATA III 5400RPM 6GB Internal Hard Drive
seagate ironwolf pro st14000ne0008 14 tb hard drive - 3.5' internal - sata (sata/600)
Toshiba N300 Pro 12TB NAS 3.5-Inch Internal Hard Drive - CMR SATA 6 Gb/s 7200 RPM 512 MB Cache - HDWG51CUZSVB
Seagate IronWolf Pro 14 TB NAS RAID Internal Hard Drive - 7,200 RPM SATA 6 Gb/s 3.5-inch (ST14000NE0008)
Seagate IronWolf Pro, 20 TB, Enterprise NAS Internal HDD –CMR 3.5 Inch, SATA 6 Gb/s, 7,200 RPM, 256 MB Cache for RAID Network Attached Storage (ST20000NT001)
TOSHIBA N300 Pro HDWG82AXZSTB 20TB 7200 RPM SATA 6.0Gb/s 3.5' Hard Drives BULK - Mb/ESD bag + Cardboard Box
HP 614827-001 3Tb 7200Rpm 3.5Inch 6G Sata Sc Lff Midline Hard Drive With Tray For Gen8 Servers Only
Seagate IronWolf Pro, 16 TB, Enterprise NAS Internal HDD –CMR 3.5 Inch, SATA 6 Gb/s, 7,200 RPM, 256 MB Cache for RAID Network Attached Storage (ST16000NT001)
Seagate IronWolf Pro ST16000NT001 16TB 7200 RPM 256MB Cache 3.5' Internal Hard Drive - OEM
TOSHIBA N300 NAS PRO 16TB 7200 RPM 1GB Cache SATA 6.0Gb/s 3.5' Hard Drive
Seagate IronWolf Pro 14 TB NAS RAID Internal Hard Drive - 7,200 RPM SATA 6 Gb/s 3.5-inch (ST14000NE0008)
Seagate IronWolf ST14000VN0008 14TB 3.5' SATA 6Gb/s 7200RPM 256MB Cache NAS Internal Hard Drive - New
Dell - 2 TB 7200 RPM Enterprise SATA 3.5' Hard Drive for PowerEdge / PowerVault Systems. Equipped with tray. Mfr P/N: 2G4HM
Seagate Exos X18 ST14000NM000J 14TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives
Western Digital 12TB WD Blue Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, 512 MB Cache, 3.5" - WD120EAGZ
WL 4TB 64MB Cache 5400RPM SATA III (6.0Gb/s) 3.5" Internal Surveillance DVR Hard Drive - w/ 1 Year Warranty
Toshiba MG08ACA16TE 16TB 7200RPM 512e 3.5' SATA Enterprise Desktop Hard Drive (MG08ACA16TE)
MDD MAXDIGITALDATA MaxDigitalData 8TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5inch Internal Hard Drive for NAS Network Storage (MD8000GSA25672NAS)
WD Blue WD120EAGZ 12TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive
HGST HDS724040ALE640 Deskstar 7K4000 HDS724040ALA640 4 TB Hard Drive - 3.5' Internal - SATA (SATA/600)
Seagate Barracuda XT ST4000DX000 4 TB Hard Drive - SATA [SATA/600] - 3.5 Drive - Internal (ST4000DX000)
Seagate IronWolf 14TB NAS Internal Hard Drive HDD - 3.5 Inch SATA 6Gb/s 7200 RPM 256MB Cache for RAID Network Attached Storage (ST14000VN0008)
HP 6 TB 3.5' Internal Hard Drive
HGST Ultrastar He8 HUH728060ALE600 (0F23269) 6TB 7200 RPM 128MB Cache SATA 6.0Gb/s 3.5' Helium Platform Enterprise Hard Disk Drives
Seagate BarraCuda NE-ST8000DM004 8TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive Bare Drive
Seagate IronWolf Pro 14TB NAS Hard Drive 7200 RPM 256MB Cache CMR SATA 6.0Gb/s 3.5' Internal HDD ST14000NE0008
Seagate SkyHawk AI ST18000VE002 18 TB Hard Drive 3.5' Internal SATA SATA/600
Seagate Exos X16 ST14000NM001G 14TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drive
Seagate IronWolf Pro 14 TB NAS RAID Internal Hard Drive - 7,200 RPM SATA 6 Gb/s 3.5-inch (ST14000NE0008)
seagate ironwolf pro st14000ne0008 14 tb hard drive - 3.5' internal - sata (sata/600)
Western Digital 12TB WD Red Plus NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 GB/s, CMR, 512 MB Cache, 3.5" - WD120EFGX
WD Red Plus 12TB NAS Hard Disk Drive - 7200 RPM Class SATA 6Gb/s, CMR, 512MB Cache, 3.5 Inch - WD120EFGX
Seagate IronWolf Pro 14TB NAS Hard Drive 7200 RPM 256MB Cache CMR SATA 6.0Gb/s 3.5' Internal HDD ST14000NE0008
Toshiba-IMSourcing MG04ACA 6 TB 3.5' Internal Hard Drive - SATA - 7200rpm - 128 MB Buffer
WD Ultrastar DC HC550 18TB Hard Drive 3.5' Internal 512MB SATA 7200 RPM 512E SE NP3 DC HC550 0F38459 (WUH721818ALE6L4)
Seagate BarraCuda ST24000DM001 24TB 7200 RPM SATA 6.0Gb/s 3.5' Hard Drive Bare Drive
Seagate Exos X18 ST16000NM001J 16 TB Hard Drive - Internal - SATA (SATA/600) - Video Surveillance System, Storage System Device Supported - 7200rpm
Seagate IronWolf Pro 18TB NAS Hard Drive 7200 RPM 256MB Cache CMR SATA 6.0Gb/s 3.5' Internal HDD ST18000NE000
Seagate Constellation ES.3 ST3000NM0033 3TB 7200 RPM 128MB Cache SATA 6.0Gb/s 3.5' Enterprise Internal Hard Drive Bare Drive
WD Blue WD100EAGZ 10TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive
Western Digital 10TB WD Blue Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, 512 MB Cache, 3.5" - WD100EAGZ
Seagate IronWolf Pro ST24000NT002 24TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive
Seagate Constellation ES.3 ST3000NM0033 3TB 7200 RPM 128MB Cache SATA 6.0Gb/s 3.5' Enterprise Internal Hard Drive Bare Drive
TOSHIBA MD04ACA400 4TB 7200 RPM 128MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive
Seagate IronWolf Pro ST24000NT002 24TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive
Seagate IronWolf Pro 14TB NAS Hard Drive 7200 RPM 256MB Cache CMR SATA 6.0Gb/s 3.5' Internal HDD ST14000NE0008
Seagate Exos X18 ST18000NM000J 18TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive
Seagate BarraCuda NE-ST8000DM004 8TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive Bare Drive
WL 3TB 7200RPM 64MB Cache SATA III 6.0Gb/s 3.5" Internal Desktop Hard Drive (For RAID, NAS, DVR, Desktop PC) w/1 Year Warranty
Seagate BarraCuda ST4000DM004 4TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives Bare Drive - OEM
Seagate BarraCuda ST4000DM004 4TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives Bare Drive - OEM
Seagate Skyhawk 4TB Video Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 64MB Cache for DVR NVR Security Camera System with Drive Health Management and in-House Rescue Services (ST4000VXZ16/016)
MDD MAXDIGITALDATA (MDD4000GSA6472 4TB 7200RPM 64MB Cache SATA 6.0Gb/s 3.5inch Internal Desktop Hard Drive (for Desktop PC, Mac, CCTV DVR, Surveillence, Server, NAS)
Seagate SkyHawk AI 16TB 3.5' SATA 256MB 7200RPM Hard Drive ST16000VE000
TOSHIBA MD04ACA400 4TB 7200 RPM 128MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive
Seagate Exos X18 ST14000NM000J 14TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives
Seagate Ironwolf pro 16tb nas internal hard drive hdd - cmr 3.5 inch sata 6gb/s 7200 rpm 256mb cache for raid network attached storage, data
Seagate IronWolf Pro ST16000NE000 16 TB Hard Drive - 3.5' Internal - SATA (SATA/600) (ST16000NE000)
Seagate IronWolf ST16000VN001 16TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive
WD Blue 6TB Desktop Hard Disk Drive - 5400 RPM SATA 6Gb/s 256MB Cache 3.5 Inch - WD60EZAX
Seagate SkyHawk AI ST18000VE002 18 TB Hard Drive 3.5' Internal SATA SATA/600
WD Red Plus 10TB NAS Hard Disk Drive - 7200 RPM Class SATA 6Gb/s, CMR, 512MB Cache, 3.5 Inch - WD100EFGX
Seagate IronWolf ST10000VN000 10TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives Bare Drive
Western Digital 8TB WD Blue PC Internal Hard Drive HDD - 5640 RPM, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD80EAAZ
WD Blue 8TB Desktop Hard Disk Drive - 5640 RPM SATA 6Gb/s 256MB Cache 3.5 Inch - WD80EAAZ
WD - Blue 8TB PC Internal Hard Drive for Desktops
Seagate SkyHawk AI 16TB 3.5' SATA 256MB 7200RPM Hard Drive ST16000VE000
Seagate SkyHawk AI 16TB 3.5' SATA 256MB 7200RPM Hard Drive ST16000VE000
Seagate IronWolf Pro ST16000NT001 16TB 7200 RPM 256MB Cache 3.5' Internal Hard Drive - OEM
WD - Blue 6TB PC Internal Hard Drive for Desktops
WD Blue 6TB Desktop Hard Disk Drive - 5400 RPM SATA 6Gb/s 256MB Cache 3.5 Inch - WD60EZAX
Seagate IronWolf ST10000VN000 10TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives Bare Drive
Synology 20TB HAT3320 Plus Series SATA III 3.5' Internal NAS HDD ( HAT3320-20T)
Seagate IronWolf Pro 14TB NAS Hard Drive 7200 RPM 256MB Cache CMR SATA 6.0Gb/s 3.5' Internal HDD ST14000NE0008
Seagate IronWolf 14TB NAS Internal Hard Drive HDD - CMR 3.5 Inch SATA 256MB Cache for RAID Network Attached Storage - Frustration Free Packaging
Seagate IronWolf Pro ST28000NT000 28TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive
HGST 0B42266 - HGST 10TB 3.5' SATA 7.2K 6Gb/s Hard Drive
Seagate BarraCuda Pro ST14000DM001 14TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive
Seagate IronWolf ST10000NE0008 10 TB Hard Drive - 3.5' Internal - SATA (SATA/600) (ST10000NE0008)
Seagate Exos M 3.5' SATA III Internal Hard Drive - 28TB
Seagate IronWolf 8TB NAS Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 7200 RPM 256MB Cache for RAID Network Attached Storage – Frustration Free Packaging (ST8000VNZ04/N004)
Seagate Desktop HDD ST4000DM000 4TB 64MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive Bare Drive
Seagate Desktop HDD ST4000DM000 4TB 5900 RPM 64MB Cache SATA 3.0Gb/s 3.5' Internal Hard Drive
TOSHIBA X300 Pro HDWR51JXZSTB 18TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive
WD2003FYYS-18W0B0 - DELL WD2003FYYS-18W0B0 DELL 2TB 7.2K 3G LFF SATA HARD DRIVE
Capacity
2TB
Price
$52.95
$/GB
$0.026
WL 6TB 5700RPM 64MB Cache 5700RPM SATA III (6.0Gb/s) 3.5" Internal Hard Drive (Desktop PC, CCTV DVR, NAS) - w/1 Year Warranty
Capacity
6 TB
Price
$179.99
$/GB
$0.030
Seagate BarraCuda NE-ST8000DM004 8TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive Bare Drive
Capacity
8TB
Price
$249.99
$/GB
$0.031
Seagate BarraCuda 8 TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s, 5,400 RPM, 256 MB Cache for Computer Desktop PC (ST8000DMZ04/004)
Capacity
8 TB
Price
$249.99
$/GB
$0.031
WD Ultrastar DC HC550 18TB Hard Drive 3.5' Internal 512MB SATA 7200 RPM 512E SE NP3 DC HC550 0F38459 (WUH721818ALE6L4)
Capacity
18TB
Price
$570.19
$/GB
$0.032
Seagate 16TB One Touch Desktop Hard Drive | USB-C (STNB16000400)
Capacity
16 TB
Price
$509.99
$/GB
$0.032
Seagate - Seagate One Touch Desktop HDD 16TB - Space Gray
Capacity
16 TB
Price
$509.99
$/GB
$0.032
TOSHIBA HDWG62CUZSVA 22TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Hard Drive Retail
Capacity
22TB
Price
$709.00
$/GB
$0.032
WD Ultrastar DC HC550 16TB Hard Drive 3.5' Internal 512MB SATA 7200 RPM 512E SE NP3 DC HC550 0F38462 (WUH721816ALE6L4)
Capacity
16TB
Price
$526.58
$/GB
$0.033
Seagate IronWolf ST12000VN0008 12 TB Hard Drive - 3.5' Internal - SATA (SATA/600) (ST12000VN0008) - OEM Pack, International Version No Warranty
Capacity
12TB
Price
$400.00
$/GB
$0.033
Seagate - Seagate One Touch Desktop HDD 8 TB - Space Gray
Capacity
8 TB
Price
$269.99
$/GB
$0.034
Seagate BarraCuda NE-ST8000DM004 8TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive Bare Drive
Capacity
8TB
Price
$275.00
$/GB
$0.034
MaxDigitalData 6TB 7200RPM 128MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive for Surveillance (MD6000GSA12872DVR) - 3 Years Warranty
Capacity
6 TB
Price
$209.99
$/GB
$0.035
Seagate BarraCuda NE-ST8000DM004 8TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive Bare Drive
Capacity
8TB
Price
$279.99
$/GB
$0.035
Seagate Exos X16 ST14000NM001G 14TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drive
Capacity
14TB
Price
$490.10
$/GB
$0.035
Seagate IronWolf ST14000VN0008 14TB 3.5' SATA 6Gb/s 7200RPM 256MB Cache NAS Internal Hard Drive - New
Capacity
14TB
Price
$495.99
$/GB
$0.035
4TB Toshiba P300 3.5 Inch Serial ATA III 5400RPM 6GB Internal Hard Drive
Capacity
4TB
Price
$142.40
$/GB
$0.036
seagate ironwolf pro st14000ne0008 14 tb hard drive - 3.5' internal - sata (sata/600)
Capacity
14TB
Price
$498.99
$/GB
$0.036
Toshiba N300 Pro 12TB NAS 3.5-Inch Internal Hard Drive - CMR SATA 6 Gb/s 7200 RPM 512 MB Cache - HDWG51CUZSVB
Capacity
12TB
Price
$429.99
$/GB
$0.036
Seagate IronWolf Pro 14 TB NAS RAID Internal Hard Drive - 7,200 RPM SATA 6 Gb/s 3.5-inch (ST14000NE0008)
Capacity
14TB
Price
$503.99
$/GB
$0.036
Seagate IronWolf Pro, 20 TB, Enterprise NAS Internal HDD –CMR 3.5 Inch, SATA 6 Gb/s, 7,200 RPM, 256 MB Cache for RAID Network Attached Storage (ST20000NT001)
Capacity
20 TB
Price
$719.99
$/GB
$0.036
TOSHIBA N300 Pro HDWG82AXZSTB 20TB 7200 RPM SATA 6.0Gb/s 3.5' Hard Drives BULK - Mb/ESD bag + Cardboard Box
Capacity
20TB
Price
$719.99
$/GB
$0.036
HP 614827-001 3Tb 7200Rpm 3.5Inch 6G Sata Sc Lff Midline Hard Drive With Tray For Gen8 Servers Only
Capacity
3TB
Price
$108.19
$/GB
$0.036
Seagate IronWolf Pro, 16 TB, Enterprise NAS Internal HDD –CMR 3.5 Inch, SATA 6 Gb/s, 7,200 RPM, 256 MB Cache for RAID Network Attached Storage (ST16000NT001)
Capacity
16 TB
Price
$579.99
$/GB
$0.036
Seagate IronWolf Pro ST16000NT001 16TB 7200 RPM 256MB Cache 3.5' Internal Hard Drive - OEM
Capacity
16TB
Price
$579.99
$/GB
$0.036
TOSHIBA N300 NAS PRO 16TB 7200 RPM 1GB Cache SATA 6.0Gb/s 3.5' Hard Drive
Capacity
16TB
Price
$579.99
$/GB
$0.036
Seagate IronWolf Pro 14 TB NAS RAID Internal Hard Drive - 7,200 RPM SATA 6 Gb/s 3.5-inch (ST14000NE0008)
Capacity
14TB
Price
$508.10
$/GB
$0.036
Seagate IronWolf ST14000VN0008 14TB 3.5' SATA 6Gb/s 7200RPM 256MB Cache NAS Internal Hard Drive - New
Capacity
14TB
Price
$510.50
$/GB
$0.036
Dell - 2 TB 7200 RPM Enterprise SATA 3.5' Hard Drive for PowerEdge / PowerVault Systems. Equipped with tray. Mfr P/N: 2G4HM
Capacity
2TB
Price
$74.00
$/GB
$0.037
Seagate Exos X18 ST14000NM000J 14TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives
Capacity
14TB
Price
$518.89
$/GB
$0.037
Western Digital 12TB WD Blue Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, 512 MB Cache, 3.5" - WD120EAGZ
Capacity
12 TB
Price
$445.00
$/GB
$0.037
WL 4TB 64MB Cache 5400RPM SATA III (6.0Gb/s) 3.5" Internal Surveillance DVR Hard Drive - w/ 1 Year Warranty
Capacity
4 TB
Price
$149.99
$/GB
$0.037
Toshiba MG08ACA16TE 16TB 7200RPM 512e 3.5' SATA Enterprise Desktop Hard Drive (MG08ACA16TE)
Capacity
16TB
Price
$599.99
$/GB
$0.037
MDD MAXDIGITALDATA MaxDigitalData 8TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5inch Internal Hard Drive for NAS Network Storage (MD8000GSA25672NAS)
Capacity
8 TB
Price
$299.99
$/GB
$0.037
WD Blue WD120EAGZ 12TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive
Capacity
12TB
Price
$449.99
$/GB
$0.037
HGST HDS724040ALE640 Deskstar 7K4000 HDS724040ALA640 4 TB Hard Drive - 3.5' Internal - SATA (SATA/600)
Capacity
4TB
Price
$150.00
$/GB
$0.037
Seagate Barracuda XT ST4000DX000 4 TB Hard Drive - SATA [SATA/600] - 3.5 Drive - Internal (ST4000DX000)
Capacity
4TB
Price
$150.00
$/GB
$0.037
Seagate IronWolf 14TB NAS Internal Hard Drive HDD - 3.5 Inch SATA 6Gb/s 7200 RPM 256MB Cache for RAID Network Attached Storage (ST14000VN0008)
Capacity
14TB
Price
$525.10
$/GB
$0.038
HP 6 TB 3.5' Internal Hard Drive
Capacity
6TB
Price
$225.10
$/GB
$0.038
HGST Ultrastar He8 HUH728060ALE600 (0F23269) 6TB 7200 RPM 128MB Cache SATA 6.0Gb/s 3.5' Helium Platform Enterprise Hard Disk Drives
Capacity
6TB
Price
$227.40
$/GB
$0.038
Seagate BarraCuda NE-ST8000DM004 8TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive Bare Drive
Capacity
8TB
Price
$303.33
$/GB
$0.038
Seagate IronWolf Pro 14TB NAS Hard Drive 7200 RPM 256MB Cache CMR SATA 6.0Gb/s 3.5' Internal HDD ST14000NE0008
Capacity
14TB
Price
$530.99
$/GB
$0.038
Seagate SkyHawk AI ST18000VE002 18 TB Hard Drive 3.5' Internal SATA SATA/600
Capacity
18TB
Price
$684.45
$/GB
$0.038
Seagate Exos X16 ST14000NM001G 14TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drive
Capacity
14TB
Price
$535.00
$/GB
$0.038
Seagate IronWolf Pro 14 TB NAS RAID Internal Hard Drive - 7,200 RPM SATA 6 Gb/s 3.5-inch (ST14000NE0008)
Capacity
14TB
Price
$535.00
$/GB
$0.038
seagate ironwolf pro st14000ne0008 14 tb hard drive - 3.5' internal - sata (sata/600)
Capacity
14TB
Price
$535.00
$/GB
$0.038
Western Digital 12TB WD Red Plus NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 GB/s, CMR, 512 MB Cache, 3.5" - WD120EFGX
Capacity
12 TB
Price
$459.99
$/GB
$0.038
WD Red Plus 12TB NAS Hard Disk Drive - 7200 RPM Class SATA 6Gb/s, CMR, 512MB Cache, 3.5 Inch - WD120EFGX
Capacity
12TB
Price
$459.99
$/GB
$0.038
Seagate IronWolf Pro 14TB NAS Hard Drive 7200 RPM 256MB Cache CMR SATA 6.0Gb/s 3.5' Internal HDD ST14000NE0008
Capacity
14TB
Price
$539.00
$/GB
$0.038
Toshiba-IMSourcing MG04ACA 6 TB 3.5' Internal Hard Drive - SATA - 7200rpm - 128 MB Buffer
Capacity
6TB
Price
$231.18
$/GB
$0.039
WD Ultrastar DC HC550 18TB Hard Drive 3.5' Internal 512MB SATA 7200 RPM 512E SE NP3 DC HC550 0F38459 (WUH721818ALE6L4)
Capacity
18TB
Price
$694.45
$/GB
$0.039
Seagate BarraCuda ST24000DM001 24TB 7200 RPM SATA 6.0Gb/s 3.5' Hard Drive Bare Drive
Capacity
24TB
Price
$931.10
$/GB
$0.039
Seagate Exos X18 ST16000NM001J 16 TB Hard Drive - Internal - SATA (SATA/600) - Video Surveillance System, Storage System Device Supported - 7200rpm
Capacity
16TB
Price
$622.10
$/GB
$0.039
Seagate IronWolf Pro 18TB NAS Hard Drive 7200 RPM 256MB Cache CMR SATA 6.0Gb/s 3.5' Internal HDD ST18000NE000
Capacity
18TB
Price
$700.00
$/GB
$0.039
Seagate Constellation ES.3 ST3000NM0033 3TB 7200 RPM 128MB Cache SATA 6.0Gb/s 3.5' Enterprise Internal Hard Drive Bare Drive
Capacity
3TB
Price
$116.99
$/GB
$0.039
WD Blue WD100EAGZ 10TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive
Capacity
10TB
Price
$394.99
$/GB
$0.039
Western Digital 10TB WD Blue Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, 512 MB Cache, 3.5" - WD100EAGZ
Capacity
10 TB
Price
$394.99
$/GB
$0.039
Seagate IronWolf Pro ST24000NT002 24TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive
Capacity
24TB
Price
$951.23
$/GB
$0.040
Seagate Constellation ES.3 ST3000NM0033 3TB 7200 RPM 128MB Cache SATA 6.0Gb/s 3.5' Enterprise Internal Hard Drive Bare Drive
Capacity
3TB
Price
$119.00
$/GB
$0.040
TOSHIBA MD04ACA400 4TB 7200 RPM 128MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive
Capacity
4TB
Price
$158.79
$/GB
$0.040
Seagate IronWolf Pro ST24000NT002 24TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive
Capacity
24TB
Price
$952.90
$/GB
$0.040
Seagate IronWolf Pro 14TB NAS Hard Drive 7200 RPM 256MB Cache CMR SATA 6.0Gb/s 3.5' Internal HDD ST14000NE0008
Capacity
14TB
Price
$555.99
$/GB
$0.040
Seagate Exos X18 ST18000NM000J 18TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive
Capacity
18TB
Price
$715.00
$/GB
$0.040
Seagate BarraCuda NE-ST8000DM004 8TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive Bare Drive
Capacity
8TB
Price
$319.75
$/GB
$0.040
WL 3TB 7200RPM 64MB Cache SATA III 6.0Gb/s 3.5" Internal Desktop Hard Drive (For RAID, NAS, DVR, Desktop PC) w/1 Year Warranty
Capacity
3 TB
Price
$119.95
$/GB
$0.040
Seagate BarraCuda ST4000DM004 4TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives Bare Drive - OEM
Capacity
4TB
Price
$159.99
$/GB
$0.040
Seagate BarraCuda ST4000DM004 4TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives Bare Drive - OEM
Capacity
4TB
Price
$159.99
$/GB
$0.040
Seagate Skyhawk 4TB Video Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 64MB Cache for DVR NVR Security Camera System with Drive Health Management and in-House Rescue Services (ST4000VXZ16/016)
Capacity
4 TB
Price
$159.99
$/GB
$0.040
MDD MAXDIGITALDATA (MDD4000GSA6472 4TB 7200RPM 64MB Cache SATA 6.0Gb/s 3.5inch Internal Desktop Hard Drive (for Desktop PC, Mac, CCTV DVR, Surveillence, Server, NAS)
Capacity
4 TB
Price
$159.99
$/GB
$0.040
Seagate SkyHawk AI 16TB 3.5' SATA 256MB 7200RPM Hard Drive ST16000VE000
Capacity
16TB
Price
$639.99
$/GB
$0.040
TOSHIBA MD04ACA400 4TB 7200 RPM 128MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive
Capacity
4TB
Price
$160.00
$/GB
$0.040
Seagate Exos X18 ST14000NM000J 14TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives
Capacity
14TB
Price
$563.99
$/GB
$0.040
Seagate Ironwolf pro 16tb nas internal hard drive hdd - cmr 3.5 inch sata 6gb/s 7200 rpm 256mb cache for raid network attached storage, data
Capacity
16TB
Price
$645.00
$/GB
$0.040
Seagate IronWolf Pro ST16000NE000 16 TB Hard Drive - 3.5' Internal - SATA (SATA/600) (ST16000NE000)
Capacity
16TB
Price
$645.00
$/GB
$0.040
Seagate IronWolf ST16000VN001 16TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive
Capacity
16TB
Price
$645.00
$/GB
$0.040
WD Blue 6TB Desktop Hard Disk Drive - 5400 RPM SATA 6Gb/s 256MB Cache 3.5 Inch - WD60EZAX
Capacity
6TB
Price
$242.00
$/GB
$0.040
Seagate SkyHawk AI ST18000VE002 18 TB Hard Drive 3.5' Internal SATA SATA/600
Capacity
18TB
Price
$727.99
$/GB
$0.040
WD Red Plus 10TB NAS Hard Disk Drive - 7200 RPM Class SATA 6Gb/s, CMR, 512MB Cache, 3.5 Inch - WD100EFGX
Capacity
10TB
Price
$404.99
$/GB
$0.040
Seagate IronWolf ST10000VN000 10TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives Bare Drive
Capacity
10TB
Price
$405.99
$/GB
$0.041
Western Digital 8TB WD Blue PC Internal Hard Drive HDD - 5640 RPM, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD80EAAZ
Capacity
8 TB
Price
$324.99
$/GB
$0.041
WD Blue 8TB Desktop Hard Disk Drive - 5640 RPM SATA 6Gb/s 256MB Cache 3.5 Inch - WD80EAAZ
Capacity
8TB
Price
$324.99
$/GB
$0.041
WD - Blue 8TB PC Internal Hard Drive for Desktops
Capacity
8 TB
Price
$324.99
$/GB
$0.041
Seagate SkyHawk AI 16TB 3.5' SATA 256MB 7200RPM Hard Drive ST16000VE000
Capacity
16TB
Price
$650.00
$/GB
$0.041
Seagate SkyHawk AI 16TB 3.5' SATA 256MB 7200RPM Hard Drive ST16000VE000
Capacity
16TB
Price
$650.00
$/GB
$0.041
Seagate IronWolf Pro ST16000NT001 16TB 7200 RPM 256MB Cache 3.5' Internal Hard Drive - OEM
Capacity
16TB
Price
$651.15
$/GB
$0.041
WD - Blue 6TB PC Internal Hard Drive for Desktops
Capacity
6 TB
Price
$244.99
$/GB
$0.041
WD Blue 6TB Desktop Hard Disk Drive - 5400 RPM SATA 6Gb/s 256MB Cache 3.5 Inch - WD60EZAX
Capacity
6TB
Price
$244.99
$/GB
$0.041
Seagate IronWolf ST10000VN000 10TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives Bare Drive
Capacity
10TB
Price
$409.99
$/GB
$0.041
Synology 20TB HAT3320 Plus Series SATA III 3.5' Internal NAS HDD ( HAT3320-20T)
Capacity
20TB
Price
$819.99
$/GB
$0.041
Seagate IronWolf Pro 14TB NAS Hard Drive 7200 RPM 256MB Cache CMR SATA 6.0Gb/s 3.5' Internal HDD ST14000NE0008
Capacity
14TB
Price
$574.45
$/GB
$0.041
Seagate IronWolf 14TB NAS Internal Hard Drive HDD - CMR 3.5 Inch SATA 256MB Cache for RAID Network Attached Storage - Frustration Free Packaging
Capacity
14TB
Price
$575.00
$/GB
$0.041
Seagate IronWolf Pro ST28000NT000 28TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive
Capacity
28TB
Price
$1150.00
$/GB
$0.041
HGST 0B42266 - HGST 10TB 3.5' SATA 7.2K 6Gb/s Hard Drive
Capacity
10TB
Price
$411.00
$/GB
$0.041
Seagate BarraCuda Pro ST14000DM001 14TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive
Capacity
14TB
Price
$575.99
$/GB
$0.041
Seagate IronWolf ST10000NE0008 10 TB Hard Drive - 3.5' Internal - SATA (SATA/600) (ST10000NE0008)
Capacity
10TB
Price
$412.00
$/GB
$0.041
Seagate Exos M 3.5' SATA III Internal Hard Drive - 28TB
Capacity
28TB
Price
$1153.69
$/GB
$0.041
Seagate IronWolf 8TB NAS Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 7200 RPM 256MB Cache for RAID Network Attached Storage – Frustration Free Packaging (ST8000VNZ04/N004)
Capacity
8 TB
Price
$329.99
$/GB
$0.041
Seagate Desktop HDD ST4000DM000 4TB 64MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive Bare Drive
Capacity
4TB
Price
$165.00
$/GB
$0.041
Seagate Desktop HDD ST4000DM000 4TB 5900 RPM 64MB Cache SATA 3.0Gb/s 3.5' Internal Hard Drive
Capacity
4TB
Price
$165.00
$/GB
$0.041
TOSHIBA X300 Pro HDWR51JXZSTB 18TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive
Capacity
18TB
Price
$745.58
$/GB
$0.041
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Buy Cheap Hard Drives: Find the Best HDD Deals in 2026
Looking to buy cheap hard drives? You're in the right place. BuyPerUnit compares 925+ HDDs ranked by price per gigabyte — the only metric that truly shows you which drives offer the best value for your money.
Right now, the cheapest HDD storage starts at just $0.025/GB, while the average across all drives is $0.038/GB. Whether you need bulk storage for backups, a NAS, or a media server, we help you find the best deal. For faster storage, compare SSDs here.
HDD Buying Guide: Get the Best Value
1. Compare Price Per GB
A $150 4TB drive ($0.037/GB) beats a $70 1TB drive ($0.07/GB) in value. Always divide price by capacity to find the real cost — that's what we do for every listing.
2. Bigger = Cheaper Per GB
Storage follows economies of scale. 4TB+ drives almost always have the lowest price per gigabyte. Buy more capacity upfront to save long-term.
3. Match RPM to Your Use Case
7200 RPM drives are faster and better for desktop use or active NAS workloads. 5400 RPM drives run cooler and quieter — ideal for bulk archival or always-on backup drives where speed is less critical.
4. Watch for Sales
Hard drive prices fluctuate. We update prices daily so you can catch the best deals. Bookmark this page and check back regularly.
3.5" Desktop vs 2.5" Laptop HDD: Which Should You Buy?
| Type | Typical $/GB | Max Capacity | Best For |
|---|---|---|---|
| 3.5" Desktop HDD | $0.015–0.025 | 20TB+ | Desktop PC, NAS, media server |
| 2.5" Laptop HDD | $0.025–0.045 | 5TB | Laptop upgrade, portable use |
| External HDD | $0.020–0.040 | 20TB+ | Backup, portable storage, archiving |
Frequently Asked Questions About Buying Hard Drives
What is the cheapest hard drive per GB right now?
Is it better to buy one large hard drive or multiple smaller ones?
Should I buy 5400 RPM or 7200 RPM?
When is the best time to buy cheap hard drives?
What brands make the most reliable hard drives?
How We Find the Cheapest Hard Drives
BuyPerUnit calculates the price per gigabyte for every hard drive by dividing the current price by the storage capacity. This gives you the true cost of storage, making it easy to compare drives of different sizes.
Products are ranked from best value (lowest $/GB) to worst. We update prices regularly from Amazon, Best Buy, and Newegg to ensure you always see current deals. Click any product to view the latest price and purchase directly.
BuyPerUnit is an affiliate site. We earn a commission when you purchase through our links at no extra cost to you.
Shop Hard Drives (HDD) by Brand
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