As of April 2026, the cheapest Western Digital hard drives (hdd) on BuyPerUnit costs $0.0258/GB — a WD 18TB My Book Desktop External Hard Drive, USB 3.0, External HDD with Password Protection and Auto Backup Software - WDBBGB0180HBK-NESN (18 TB) available at Amazon for $463.99. BuyPerUnit tracks 63 Western Digital hard drives (hdd) across Amazon, Best Buy, and Newegg, updated daily.

Western Digital Hard Drives (HDD)

63 Western Digital products ranked by price per gigabyte. Best value: $0.0258/GB

Products

63

Best $/GB

$0.0258

Highest $/GB

$1.2000

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1

WD 18TB My Book Desktop External Hard Drive, USB 3.0, External HDD with Password Protection and Auto Backup Software - WDBBGB0180HBK-NESN

Western DigitalAmazonHDD

Capacity

18 TB

Price

$463.99

$/GB

$0.026

Check Price at Amazon
2

WD 16TB My Book Desktop External Hard Drive, USB 3.0, External HDD with Password Protection and Backup Software - WDBBGB0160HBK-NESN

Western DigitalAmazonHDD

Capacity

16 TB

Price

$425.00

$/GB

$0.027

Check Price at Amazon
3

WD - D10 Game Drive for Xbox 12TB External USB 3.2 Gen 1 Portable Hard Drive - Black

Western DigitalBest BuyHDD
4.7(42)

Capacity

12 TB

Price

$319.99

$/GB

$0.027

Check Price at Best Buy
4

WD - easystore 20TB External USB 3.0 Hard Drive - Black

Western DigitalBest Buy2yrHDD
4.6(278)

Capacity

20 TB

Price

$559.99

$/GB

$0.028

Check Price at Best Buy
5

WD - easystore 18TB External USB 3.0 Hard Drive - Black

Western DigitalBest Buy2yrHDD
4.5(752)

Capacity

18 TB

Price

$509.99

$/GB

$0.028

Check Price at Best Buy
6

Western Digital 12TB WD Blue Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, 512 MB Cache, 3.5" - WD120EAGZ

Western DigitalAmazon2yrHDD

Capacity

12 TB

Price

$344.15

$/GB

$0.029

Check Price at Amazon
7

Western Digital 14TB Elements Desktop External Hard Drive - USB 3.0

Western DigitalAmazonHDD

Capacity

14 TB

Price

$409.99

$/GB

$0.029

Check Price at Amazon
8

WD - Blue 8TB PC Internal Hard Drive for Desktops

Western DigitalBest Buy2yrHDD
4.2(18)

Capacity

8 TB

Price

$239.99

$/GB

$0.030

Check Price at Best Buy
9

Western Digital 8TB WD Blue PC Internal Hard Drive HDD - 5640 RPM, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD80EAAZ

Western DigitalAmazon2yrHDD

Capacity

8 TB

Price

$239.99

$/GB

$0.030

Check Price at Amazon
10

Western Digital 8TB My Book Desktop External Hard Drive, USB 3.0, External HDD with Password Protection and Backup Software - WDBBGB0080HBK-NESN

Western DigitalAmazonHDD

Capacity

8 TB

Price

$242.99

$/GB

$0.030

Check Price at Amazon
11

WD 14TB My Book Desktop External Hard Drive, USB 3.0, External HDD with Password Protection and Backup Software - WDBBGB0140HBK-NESN

Western DigitalAmazonHDD

Capacity

14 TB

Price

$429.99

$/GB

$0.031

Check Price at Amazon
12

WD - BLACK P10 Game Drive for Xbox 5TB External USB 3.2 Gen 1 Portable Hard Drive - Black With White Trim

Western DigitalBest BuyHDD
4.7(473)

Capacity

5 TB

Price

$164.99

$/GB

$0.033

Check Price at Best Buy
13

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

$136.76

$/GB

$0.034

Check Price at Amazon
14

Western Digital 10TB WD Blue Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, 512 MB Cache, 3.5" - WD100EAGZ

Western DigitalAmazon2yrHDD

Capacity

10 TB

Price

$343.05

$/GB

$0.034

Check Price at Amazon
15

WD - Purple 4TB Surveillance Internal Hard Drive

Western DigitalBest Buy3yrHDD

Capacity

4 TB

Price

$139.99

$/GB

$0.035

Check Price at Best Buy
16

WD - easystore 8TB External USB 3.0 Hard Drive - Black

Western DigitalBest Buy2yrHDD
4.7(7,212)

Capacity

8 TB

Price

$279.99

$/GB

$0.035

Check Price at Best Buy
17

Western Digital 8TB Elements Desktop External Hard Drive, USB 3.0 external hard drive for plug-and-play storage - Western DigitalBWLG0080HBK-NESN, Black

Western DigitalAmazonHDD

Capacity

8 TB

Price

$279.99

$/GB

$0.035

Check Price at Amazon
18

WD Western Digital 8TB WD_Black Performance Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD8002FZBX

Western DigitalAmazon5yrHDD

Capacity

8 TB

Price

$279.99

$/GB

$0.035

Check Price at Amazon
19

Western Digital 6TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" -WD60EFPX

Western DigitalAmazon3yrHDD

Capacity

6 TB

Price

$211.54

$/GB

$0.035

Check Price at Amazon
20

WD 44TB My Book Duo Desktop RAID External Hard Drive HDD, USB 3.1, With Password Protection and Auto Backup Software - WDBFBE0440JBK-NESN

Western DigitalAmazon3yrHDD

Capacity

44 TB

Price

$1569.99

$/GB

$0.036

Check Price at Amazon
21

WD - Easystore 6TB External USB 3.2 Gen 1 Portable Hard Drive - Black

Western DigitalBest Buy2yrHDD
4.6(104)

Capacity

6 TB

Price

$214.99

$/GB

$0.036

Check Price at Best Buy
22

WD - Easystore 5TB External USB 3.2 Gen 1 Portable Hard Drive - Black

Western DigitalBest Buy2yrHDD
4.7(11,984)

Capacity

5 TB

Price

$184.99

$/GB

$0.037

Check Price at Best Buy
23

Western Digital WD 5TB Elements Portable External Hard Drive for Windows, USB 3.2 Gen 1/USB 3.0 for PC & Mac, Plug and Play Ready - WDBU6Y0050BBK-WESN

Western DigitalAmazon2yrHDD

Capacity

5 TB

Price

$184.99

$/GB

$0.037

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

$149.99

$/GB

$0.037

Check Price at Amazon
25

WD - My Passport 6TB External USB 3.0 Portable Hard Drive - Black

Western DigitalBest Buy3yrHDD
4.7(1,802)

Capacity

6 TB

Price

$224.99

$/GB

$0.037

Check Price at Best Buy
26

WD - D10 8TB External USB 3.2 Gen 1 Portable Hard Drive - Black

Western DigitalBest Buy3yrHDD
4.7(973)

Capacity

8 TB

Price

$299.99

$/GB

$0.037

Check Price at Best Buy
27

WD - BLACK 6TB Gaming Internal Hard Drive

Western DigitalBest Buy5yrHDD
4.6(50)

Capacity

6 TB

Price

$229.99

$/GB

$0.038

Check Price at Best Buy
28

Western Digital 6TB WD_Black Performance Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD6004FZBX

Western DigitalAmazon5yrHDD

Capacity

6 TB

Price

$229.99

$/GB

$0.038

Check Price at Amazon
29

WD - My Passport 5TB External USB 3.0 Portable Hard Drive - Black

Western DigitalBest Buy3yrHDD
4.7(2,876)

Capacity

5 TB

Price

$194.99

$/GB

$0.039

Check Price at Best Buy
30

Western Digital 6TB My Book Desktop External Hard Drive, USB 3.0, External HDD with Password Protection and Auto Backup Software - WDBBGB0060HBK-NESN

Western DigitalAmazonHDD

Capacity

6 TB

Price

$236.99

$/GB

$0.039

Check Price at Amazon
31

WD - P10 5TB External USB 3.2 Gen 1 Portable Hard Drive - Black

Western DigitalBest Buy3yrHDD
4.8(470)

Capacity

5 TB

Price

$199.99

$/GB

$0.040

Check Price at Best Buy
32

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
33

WD 5TB My Passport Ultra, Blue, Portable External Hard Drive, backup software with defense against ransomware, and password protection, USB-C and USB 3.1 - WDBFTM0050BBL-WESN

Western DigitalAmazonHDD

Capacity

5 TB

Price

$204.99

$/GB

$0.041

Check Price at Amazon
34

WD Western Digital 10TB WD_Black Performance Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, 512 MB Cache, 3.5" - WD102FZBX

Western DigitalAmazon5yrHDD

Capacity

10 TB

Price

$419.99

$/GB

$0.042

Check Price at Amazon
35

Western Digital 6TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD64PURZ

Western DigitalAmazon3yrHDD

Capacity

6 TB

Price

$253.27

$/GB

$0.042

Check Price at Amazon
36

Western Digital 8TB WD Purple Pro Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD8002PURP

Western DigitalAmazon5yrHDD

Capacity

8 TB

Price

$340.57

$/GB

$0.043

Check Price at Amazon
37

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

Western DigitalBest Buy3yrHDD
4.6(607)

Capacity

4 TB

Price

$174.99

$/GB

$0.044

Check Price at Best Buy
38

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

Western DigitalBest Buy3yrHDD
4.7(1,169)

Capacity

4 TB

Price

$179.99

$/GB

$0.045

Check Price at Best Buy
39

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

Western DigitalBest Buy3yrHDD
4.5(549)

Capacity

4 TB

Price

$179.99

$/GB

$0.045

Check Price at Best Buy
40

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

$180.90

$/GB

$0.045

Check Price at Amazon
41

Western Digital WD Bulk WD10EURX 1TB AV GP SATA 6Gbs 3.5", 1 TB

Western DigitalAmazonHDD

Capacity

1 TB

Price

$47.99

$/GB

$0.048

Check Price at Amazon
42

Western Digital 8TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 128 MB Cache, 3.5" - WD84PURZ

Western DigitalAmazonHDD

Capacity

8 TB

Price

$389.99

$/GB

$0.049

Check Price at Amazon
43

Western Digital 3TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 64 MB Cache, 3.5" - WD30EFRX

Western DigitalAmazonHDD

Capacity

3 TB

Price

$150.00

$/GB

$0.050

Check Price at Amazon
44

SanDisk Professional 5TB G-Drive ArmorATD - Rugged, Durable Portable External Hard Drive HDD, USB-C, USB 3.2 Gen 1 - SDPH81G-005T-GBA1D

Western DigitalAmazon3yrHDD

Capacity

5 TB

Price

$254.99

$/GB

$0.051

Check Price at Amazon
45

Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 128 MB Cache, 3.5" - WD44PURZ

Western DigitalAmazonHDD

Capacity

4 TB

Price

$205.99

$/GB

$0.051

Check Price at Amazon
46

Western Digital 3TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 64 MB Cache, 3.5" - WD30PURZ

Western DigitalAmazonHDD

Capacity

3 TB

Price

$160.00

$/GB

$0.053

Check Price at Amazon
47

WD - Easystore 2TB External USB 3.2 Gen 1 Portable Hard Drive - Black

Western DigitalBest Buy2yrHDD
4.7(17,565)

Capacity

2 TB

Price

$109.99

$/GB

$0.055

Check Price at Best Buy
48

Western Digital 1TB WD Blue PC Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, 64 MB Cache, 3.5" - WD10EZEX

Western DigitalAmazonHDD

Capacity

1 TB

Price

$57.00

$/GB

$0.057

Check Price at Amazon
49

WD - My Passport 2TB External USB 3.0 Portable Hard Drive - Black

Western DigitalBest Buy3yrHDD
4.7(5,082)

Capacity

2 TB

Price

$114.99

$/GB

$0.057

Check Price at Best Buy
50

WD - My Passport for Mac 2TB External USB 3.0 Portable Hard Drive - Blue

Western DigitalBest Buy3yrHDD
4.7(1,373)

Capacity

2 TB

Price

$119.99

$/GB

$0.060

Check Price at Best Buy
51

WD - My Passport Ultra for Mac 2TB External USB 3.0 Portable Hard Drive - Silver

Western DigitalBest Buy3yrHDD
4.7(752)

Capacity

2 TB

Price

$124.99

$/GB

$0.062

Check Price at Best Buy
52

WD 2TB Elements Portable External Hard Drive for Windows, USB 3.2 Gen 1/USB 3.0 for PC & Mac, Plug and Play Ready - WDBU6Y0020BBK-WESN

Western DigitalAmazonHDD

Capacity

2 TB

Price

$125.08

$/GB

$0.063

Check Price at Amazon
53

Wd Blue Wd10ezex 1 Tb 3.5 Internal Hard Drive - Sata - 7200 RPM - 64

Western DigitalAmazonHDD

Capacity

1 TB

Price

$68.00

$/GB

$0.068

Check Price at Amazon
54

Western Digital 2TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 64 MB Cache, 3.5" - WD23PURZ

Western DigitalAmazon3yrHDD

Capacity

2 TB

Price

$142.00

$/GB

$0.071

Check Price at Amazon
55

Western Digital(WD) BLUE Deskptop 1TB( 1Terabyte) 3.5"Hard Disk Drive, 5400~7200RPM, SATA3 ( 6.0GB/s), 64MB Cache, IDEAL for PC/Mac/CCTV/NAS/DVR/Raid and SATA Applications, 1YR Warranty (Blue)

Western DigitalAmazonHDD

Capacity

1 TB

Price

$82.00

$/GB

$0.082

Check Price at Amazon
56

WD Blue 500GB Desktop Hard Disk Drive - 7200 RPM Class SATA 6Gb/s 32MB Cache 3.5 Inch - WD5000AZLX

Western DigitalAmazon2yrHDD

Capacity

500 GB

Price

$44.99

$/GB

$0.090

Check Price at Amazon
57

Western Digital Blue WD5000AZLX 500GB 7200 RPM 32MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive

Western DigitalAmazonHDD

Capacity

500 GB

Price

$47.88

$/GB

$0.096

Check Price at Amazon
58

WD - My Passport 1TB External USB 3.0 Portable Hard Drive - Black

Western DigitalBest Buy3yrHDD
4.7(2,647)

Capacity

1 TB

Price

$99.99

$/GB

$0.100

Check Price at Best Buy
59

Western Digital 1TB WD Blue Mobile Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, 128 MB Cache, 2.5" - WD10SPZX

Western DigitalAmazonHDD

Capacity

1 TB

Price

$99.99

$/GB

$0.100

Check Price at Amazon
60

WD Blue 500GB Desktop Hard Disk Drive - 7200 RPM SATA 6 Gb/s 16MB Cache 3.5 Inch - WD5000AAKX

Western DigitalAmazonHDD

Capacity

500 GB

Price

$54.00

$/GB

$0.108

Check Price at Amazon
61

For WD/Western Data WD2002FFSX Red Disk PRO Series Enterprise NAS Special Mechanical Hard Drive 2TB

Western DigitalNeweggHDD

Capacity

2TB

Price

$241.00

$/GB

$0.120

Check Price at Newegg
62

WD Purple WDD100T1P0C 1 TB Class 10/UHS-I U1 microSDXC

Western DigitalNeweggHDD

Capacity

1TB

Price

$257.32

$/GB

$0.257

Check Price at Newegg
63

Swann 8 Channel 960H Professional Security System with 1TB Hard Drive, 6 900TVL Cameras, and 82 Feet Night Vision (SWDVK-834506-CL)

Western DigitalNeweggHDD

Capacity

1TB

Price

$1199.99

$/GB

$1.200

Check Price at Newegg
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About Western Digital Hard Drives (HDD)

Compare all Western Digital hard drives (hdd) sorted by price per gigabyte. BuyPerUnit tracks 63 Western Digital products across multiple retailers to help you find the best storage deals. Prices range from $0.0258/GB to $1.2000/GB.

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