As of May 2026, the cheapest 4TB hard drives (hdd) on BuyPerUnit costs $0.0340/GB — a Seagate Seagate 4TB Enterprise Capacity SAS 12Gb s 512n 3.5" Internal Hard Drive Model ST4000NM0025 (4 TB) available at Amazon for $135.80. BuyPerUnit tracks 37 4TB hard drives (hdd) across Amazon, Best Buy, and Newegg, updated daily.

4TB Hard Drives (HDD)

37 4TB products ranked by price per gigabyte. Best value: $0.0340/GB

Products

37

Best $/GB

$0.0340

Highest $/GB

$0.2622

Ranked by:$/GB
Click the bell to set a price alert
1

Seagate 4TB Enterprise Capacity SAS 12Gb s 512n 3.5" Internal Hard Drive Model ST4000NM0025

SeagateAmazonHDD

Capacity

4 TB

Price

$135.80

$/GB

$0.034

Check Price at Amazon
2

Seagate 4 TB 3.5" Internal Hard Drive

SeagateAmazonHDD

Capacity

4 TB

Price

$136.47

$/GB

$0.034

Check Price at Amazon
3

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)

MDD MAXDIGITALDATAAmazon3yrHDD

Capacity

4 TB

Price

$139.99

$/GB

$0.035

Check Price at Amazon
4

WL 4TB 64MB Cache 5400RPM SATA III (6.0Gb/s) 3.5" Internal Surveillance DVR Hard Drive - w/ 1 Year Warranty

GoHardDriveAmazonHDD

Capacity

4 TB

Price

$139.99

$/GB

$0.035

Check Price at Amazon
5

WD - Purple 4TB Surveillance Internal Hard Drive

Western DigitalBest Buy3yrHDD
4.8(82)

Capacity

4 TB

Price

$139.99

$/GB

$0.035

Check Price at Best Buy
6

Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ

Western DigitalAmazonHDD

Capacity

4 TB

Price

$141.99

$/GB

$0.035

Check Price at Amazon
7

Western Digital 4TB WD Blue PC Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, 128 MB Cache, 3.5" - WD40EZZX

Western DigitalAmazonHDD

Capacity

4 TB

Price

$144.99

$/GB

$0.036

Check Price at Amazon
8

WD - Blue 4TB PC Internal Hard Drive for Desktops

Western DigitalBest Buy2yrHDD
5.0(1)

Capacity

4 TB

Price

$144.99

$/GB

$0.036

Check Price at Best Buy
9

Seagate - Barracuda 4TB Internal Hard Drive for Desktops

SeagateBest Buy2yrHDD
4.7(302)

Capacity

4 TB

Price

$149.99

$/GB

$0.037

Check Price at Best Buy
10

Seagate BarraCuda 4TB Internal Hard Drive HDD – 3.5 Inch Sata 6 Gb/s 5400 RPM 256MB Cache For Computer Desktop PC – Frustration Free Packaging ST4000DMZ04/DM004

SeagateAmazon2yrHDD

Capacity

4 TB

Price

$149.99

$/GB

$0.037

Check Price at Amazon
11

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)

SeagateAmazon3yrHDD

Capacity

4 TB

Price

$149.99

$/GB

$0.037

Check Price at Amazon
12

Seagate 4TB BarraCuda SATA 6Gb/s 256MB Cache 3.5-Inch Internal Hard Drive (ST4000DM004) Single Pack,Mechanical Hard Disk

SeagateAmazonHDD

Capacity

4 TB

Price

$151.29

$/GB

$0.038

Check Price at Amazon
13

HUS724040ALA640 Hard Drive 74PPR T630 R640 4TB SATA

HUS724040ALA640NeweggHDD

Capacity

4TB

Price

$153.31

$/GB

$0.038

Check Price at Newegg
14

Seagate Constellation ES.3 ST4000NM0033 4 TB Hard Drive - 3.5 Internal - SATA

SeagateAmazonHDD

Capacity

4 TB

Price

$154.96

$/GB

$0.039

Check Price at Amazon
15

Western Digital 4TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" -WD40EFPX

Western DigitalAmazonHDD

Capacity

4 TB

Price

$154.99

$/GB

$0.039

Check Price at Amazon
16

FOR Suitable FOR ES.3 4TB 7200RPM 6Gb/s 64MB 3.5 SATA HDD Hard Drive ST4000NM0033

FORNeweggHDD

Capacity

4TB

Price

$159.32

$/GB

$0.040

Check Price at Newegg
17

WD - My Cloud Home 4TB Personal Cloud - White

Western DigitalBest Buy2yrHDD
4.0(1,469)

Capacity

4 TB

Price

$159.99

$/GB

$0.040

Check Price at Best Buy
18

Seagate Portable 4TB External Hard Drive HDD – USB 3.0 for PC, Mac, Xbox, & PlayStation - 1-Year Rescue Service (SRD0NF1)

SeagateAmazon1yrHDD

Capacity

4 TB

Price

$159.99

$/GB

$0.040

Check Price at Amazon
19

White Label WL 4TB 7200RPM 64MB Cache SATA 6.0Gb/s (Enterprise Grade) 3.5" Hard Drive (for Server, RAID, NAS, DVR, Desktop PC)

White LabelAmazon

Capacity

4 TB

Price

$159.99

$/GB

$0.040

Check Price at Amazon
20

Dell 4TB HDD SAS 3,5 Inch 7,2K Near Line, 202V7 (Near Line)

DellAmazon

Capacity

4 TB

Price

$160.00

$/GB

$0.040

Check Price at Amazon
21

Seagate Barracuda ST4000LM024 4 TB 2.5" Internal Hard Drive

SeagateAmazonHDD

Capacity

4 TB

Price

$164.99

$/GB

$0.041

Check Price at Amazon
22

Seagate IronWolf 4TB NAS Internal Hard Drive CMR 3.5 Inch SATA 6Gb/s 5400 RPM 64MB Cache for RAID Network Attached Storage Rescue Services (ST4000VNZ06/006)

SeagateAmazonHDD

Capacity

4 TB

Price

$169.99

$/GB

$0.042

Check Price at Amazon
23

WD 4TB My Passport, Portable External Hard Drive, Red, backup software with defense against ransomware, and password protection, USB 3.1/USB 3.0 compatible - WDBPKJ0040BRD-WESN

Western DigitalAmazonHDD

Capacity

4 TB

Price

$170.49

$/GB

$0.043

Check Price at Amazon
24

WD 4TB Elements Portable External Hard Drive for Windows, USB 3.2 Gen 1/USB 3.0 for PC & Mac, Plug and Play Ready - ‎WDBU6Y0040BBK-WESN

Western DigitalAmazon2yrHDD

Capacity

4 TB

Price

$172.95

$/GB

$0.043

Check Price at Amazon
25

Toshiba Canvio Gaming 4TB Portable External Hard Drive USB 3.0, Black for PlayStation, Xbox, PC & Mac - HDTX140XK3CA

TOSHIBAAmazon2yrHDD

Capacity

4 TB

Price

$176.10

$/GB

$0.044

Check Price at Amazon
26

WD 4TB My Passport, Portable External Hard Drive, Black, backup software with defense against ransomware, and password protection, USB 3.1/USB 3.0 compatible - WDBPKJ0040BBK-WESN

Western DigitalAmazonHDD

Capacity

4 TB

Price

$183.99

$/GB

$0.046

Check Price at Amazon
27

LaCie Rugged Mini, 4TB, 2.5", Portable External Hard Drive, for PC Mac iPad and iPhone, Data Rescue Service (LAC900633)

LaCieAmazon2yrHDD

Capacity

4 TB

Price

$189.99

$/GB

$0.047

Check Price at Amazon
28

Western Digital 4TB My Book Desktop External Hard Drive, USB 3.0, External HDD with Password Protection and Backup Software - WDBBGB0040HBK-NESN

Western DigitalAmazonHDD

Capacity

4 TB

Price

$196.00

$/GB

$0.049

Check Price at Amazon
29

Seagate 4 TB 3.5" Internal Hard Drive

SeagateAmazonHDD

Capacity

4 TB

Price

$200.00

$/GB

$0.050

Check Price at Amazon
30

WD - My Passport for Mac 4TB External USB 3.0 Portable Hard Drive - Blue

Western DigitalBest Buy3yrHDD
4.6(611)

Capacity

4 TB

Price

$204.99

$/GB

$0.051

Check Price at Best Buy
31

WD - My Passport Ultra for Mac 4TB External USB 3.0 Portable Hard Drive - Silver

Western DigitalBest Buy3yrHDD
4.5(551)

Capacity

4 TB

Price

$209.99

$/GB

$0.052

Check Price at Best Buy
32

WD - My Passport Ultra 4TB External USB 3.0 Portable Hard Drive - Silver

Western DigitalBest Buy3yrHDD
4.7(1,173)

Capacity

4 TB

Price

$209.99

$/GB

$0.052

Check Price at Best Buy
33

SanDisk Professional - G-DRIVE ArmorATD 4TB External USB-C Portable Hard Drive - Space Gray

G-DRIVEBest Buy3yrHDD
4.5(96)

Capacity

4 TB

Price

$229.99

$/GB

$0.057

Check Price at Best Buy
34

Transcend StoreJet 4TB Rugged External Hard Drive, USB3.1(5Gbps) Portable HDD with One Touch Auto-Backup Button/Anti-Shock Resistant, Compact&Lightweight, Lightning-Fast Speeds, Iron Grey -TS4TSJ25M3S

TranscendAmazonHDD

Capacity

4 TB

Price

$239.99

$/GB

$0.060

Check Price at Amazon
35

Transcend StoreJet 4TB External Hard Drive, for PS4/PC/Mac/Desktop/Laptop/Xbox, USB3.1(5Gbps)Type-A Portable HDD, One Touch Auto-Backup/Shock Resistant/Three-stage shock protection system(TS4TSJ25H3P)

TranscendAmazonHDD

Capacity

4 TB

Price

$249.99

$/GB

$0.062

Check Price at Amazon
36

HP 4 TB 3.5' Internal Hard Drive - SATA - 7200rpm - 801888-B21

HPNeweggHDD

Capacity

4TB

Price

$397.00

$/GB

$0.099

Check Price at Newegg
37

SANDISK 4TB Extreme Portable SSD (New Model) - up to 2000MB/s Transfer speeds - USB Type-C connectivity, Reliable Durability - Black - SDSSDE70-4T00-G25

SanDiskAmazonHDD

Capacity

4 TB

Price

$911.84

$/GB

$0.228

Check Price at Amazon
38

Samsung T7 Shield 4TB Portable SSD - 1050MB/s, Rugged, Water & Dust Resistant, for Content Creators - Black

SamsungAmazon3yrHDD

Capacity

4 TB

Price

$1049.00

$/GB

$0.262

Check Price at Amazon
Compare 0 products
Compare

About 4TB Hard Drives (HDD)

Compare all 4TB hard drives (hdd) sorted by price per gigabyte. BuyPerUnit tracks 37 products in the 4TB capacity range to help you find the best storage deals. Prices range from $0.0340/GB to $0.2622/GB.

Other Capacities

Submit a Better Deal

Help others save money

Report an Issue

Help us keep data accurate