Hard Drives (HDD)

Ranked by price per gigabyte

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Ranked by:$/GB
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301

Seagate Portable 1TB External Hard Drive HDD – USB 3.0 for PC, Mac, PlayStation, & Xbox, 1-Year Rescue Service (STGX1000400) , Black

SeagateAmazonHDD40% below avg

Capacity

1 TB

Price

$119.80

$/GB

$0.120

Check Price at Amazon
302

LaCie STLP1000400 1TB USB-C 3.1 Portable Hard Disk Drive STLP1000400

LaCieNeweggHDD40% below avg

Capacity

1TB

Price

$121.14

$/GB

$0.121

Check Price at Newegg
303

LaCie 1TB Rugged Mini External Hard Drive USB 3.0 Model LAC301558 Orange

LaCieNeweggHDD39% below avg

Capacity

1TB

Price

$121.99

$/GB

$0.122

Check Price at Newegg
304

TOSHIBA 1TB Canvio Gaming Portable External Hard Drive USB 3.0 Model HDTX110XK3AA Black

ToshibaNeweggHDD90d low

Capacity

1TB

Price

$122.46

$/GB

$0.122

Check Price at Newegg
305

TOSHIBA 1TB Canvio Advance Portable External Hard Drive USB 3.0 Model HDTCA10XW3AA White

ToshibaNeweggHDD39% below avg

Capacity

1TB

Price

$122.84

$/GB

$0.123

Check Price at Newegg
306

TOSHIBA 1TB Canvio Advance Portable External Hard Drive USB 3.0 Model HDTCA10XW3AA White

ToshibaNeweggHDD39% below avg

Capacity

1TB

Price

$122.99

$/GB

$0.123

Check Price at Newegg
307

WD 1TB My Passport Portable Storage External Hard Drive USB 3.2 for PC/MAC Black (WDBYVG0010BBK-WESN)

Western DigitalNeweggHDD90d low

Capacity

1TB

Price

$122.99

$/GB

$0.123

Check Price at Newegg
308

WD 1TB My Passport Portable Storage External Hard Drive USB 3.2 for PC/MAC Black (WDBYVG0010BBK-WESN)

Western DigitalNeweggHDD90d low

Capacity

1TB

Price

$122.99

$/GB

$0.123

Check Price at Newegg
309

Silicon Power 2TB Armor A60 Shockproof and Water-Resistant Portable Hard Drive USB 3.0 Model SP020TBPHDA60S3K Black

Silicon PowerNeweggHDD39% below avg

Capacity

2TB

Price

$245.99

$/GB

$0.123

Check Price at Newegg
310

ADATA 1TB HD710P Portable Hard Drive USB 3.1 Model AHD710P-1TU31-CBK Black

ADATANeweggHDD38% below avg

Capacity

1TB

Price

$124.49

$/GB

$0.124

Check Price at Newegg
311

WD 1TB My Passport, Portable External Hard Drive, Black, backup software with defense against ransomware, and password protection, USB 3.1/USB 3.0 compatible - WDBYVG0010BBK-WESN

Western DigitalAmazonHDD37% below avg

Capacity

1 TB

Price

$126.50

$/GB

$0.127

Check Price at Amazon
312

Seagate 1TB One Touch Portable Hard Drive USB 3.0 Model STKY1000400 Black

SeagateNeweggHDD36% below avg

Capacity

1TB

Price

$128.98

$/GB

$0.129

Check Price at Newegg
313

FireCuda Okoye Special Edition 2TB Portable External Hard Drive Model STLX2000403

FireCudaNeweggHDD36% below avg

Capacity

2TB

Price

$258.16

$/GB

$0.129

Check Price at Newegg
314

BUFFALO 1TB MiniStation HD-PGF Portable Hard Drive USB 3.2 Gen 1, Micro B Model HD-PGF1.

BUFFALONeweggHDD36% below avg

Capacity

1TB

Price

$129.20

$/GB

$0.129

Check Price at Newegg
315

iStorage diskAshur2 HDD 4TB Black - Secure portable hard drive - Password protected, dust and water resistant, portable, military grade hardware

iStorageNeweggHDD35% below avg

Capacity

4TB

Price

$519.95

$/GB

$0.130

Check Price at Newegg
316

Transcend 1TB StoreJet 25A3 External Hard Drive USB 3.0 Model TS1TSJ25A3K Black

TranscendNeweggHDD34% below avg

Capacity

1TB

Price

$131.99

$/GB

$0.132

Check Price at Newegg
317

Seagate Expansion Portable 1TB External Hard Drive HDD - 2.5 Inch USB 3.0, for Mac and PC with Rescue Services (STKM1000400)

SeagateNeweggHDD90d low

Capacity

1TB

Price

$135.90

$/GB

$0.136

Check Price at Newegg
318

BUFFALO 1TB MiniStation HD-PGF Portable Hard Drive USB 3.2 Gen 1, Micro B Model HD-PGF1.

BUFFALONeweggHDD31% below avg

Capacity

1TB

Price

$137.46

$/GB

$0.137

Check Price at Newegg
319

Seagate 2TB One Touch Portable Hard Drive USB 3.0 Model STKB2000404 Space Gray

SeagateNeweggHDD31% below avg

Capacity

2TB

Price

$275.70

$/GB

$0.138

Check Price at Newegg
320

Seagate Expansion Portable 1TB External Hard Drive HDD - 2.5 Inch USB 3.0, for Mac and PC with Rescue Services (STKM1000400)

SeagateNeweggHDD90d low

Capacity

1TB

Price

$139.99

$/GB

$0.140

Check Price at Newegg
321

Tianken 160GB Ultra Slim Portable External Hard Drive USB 3.1 Type C HDD Storage for PC, Mac, Laptop, PS4, Xbox one

TiankenAmazon1yrHDD28% below avg

Capacity

160 GB

Price

$22.99

$/GB

$0.144

Check Price at Amazon
322

ADATA 1TB DashDrive Durable HD650 External Hard Drive USB 3.0 Model AHD650-1TU3-CBK Black

ADATANeweggHDD90d low

Capacity

1TB

Price

$144.08

$/GB

$0.144

Check Price at Newegg
323

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

Western DigitalBest Buy2yrHDD
4.7(13,757)
28% below avg

Capacity

1 TB

Price

$144.99

$/GB

$0.145

Check Price at Best Buy
324

Seagate FireCuda Gaming Hard Drive External Hard Drive 1TB - USB 3.2 Gen 1, RGB LED Lighting for PC and Mac with Rescue Services (STKL1000400)

SeagateNeweggHDD27% below avg

Capacity

1TB

Price

$146.31

$/GB

$0.146

Check Price at Newegg
325

Seagate Spider-Man Special Edition FireCuda External HDD 2TB - USB 3.2 Gen 1, LED RGB lighting White(STKL2000417) Hard Drive

SeagateNeweggHDD27% below avg

Capacity

2TB

Price

$292.99

$/GB

$0.146

Check Price at Newegg
326

WD 1TB My Passport Portable Storage External Hard Drive USB 3.2 for PC/MAC Black (WDBYVG0010BBK-WESN)

Western DigitalNeweggHDD26% below avg

Capacity

1TB

Price

$148.99

$/GB

$0.149

Check Price at Newegg
327

TOSHIBA 1TB Canvio Flex Portable External Hard Drive USB 3.0 Model HDTX110XSCAA Silver

ToshibaNeweggHDD25% below avg

Capacity

1TB

Price

$149.38

$/GB

$0.149

Check Price at Newegg
328

WD 1TB My Passport Portable Storage External Hard Drive USB 3.2 for PC/MAC Black (WDBYVG0010BBK-WESN)

Western DigitalNeweggHDD25% below avg

Capacity

1TB

Price

$149.99

$/GB

$0.150

Check Price at Newegg
329

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

Western DigitalBest Buy3yrHDD
4.7(2,673)
25% below avg

Capacity

1 TB

Price

$149.99

$/GB

$0.150

Check Price at Best Buy
330

WD - 1TB easystore® Portable Hard Drive for Windows, Mac and compatible devices - Black

Western DigitalBest Buy3yrHDD25% below avg

Capacity

1 TB

Price

$149.99

$/GB

$0.150

Check Price at Best Buy
331

ADATA 1TB HV320 Portable Hard Drive USB 3.2 Gen1 Model AHV320-1TU31-CBK Black

ADATANeweggHDD24% below avg

Capacity

1TB

Price

$151.90

$/GB

$0.152

Check Price at Newegg
332

Seagate FireCuda Black Panther Special Edition 2TB Portable External Hard Drive Model STLX2000401 Black

SeagateNeweggHDD24% below avg

Capacity

2TB

Price

$303.99

$/GB

$0.152

Check Price at Newegg
333

WD 1TB Silver My Passport Ultra Portable Storage External Hard Drive USB-C for PC/Windows (WDBC3C0010BSL-WESN)

Western DigitalNeweggHDD20% below avg

Capacity

1TB

Price

$159.99

$/GB

$0.160

Check Price at Newegg
334

2TB FireCuda Special Edition - Han Solo Drive Portable Hard Drive USB 3.2 Gen 1 Model STKL2000413 White

2TBNeweggHDD

Capacity

2TB

Price

$330.26

$/GB

$0.165

Check Price at Newegg
335

Apricorn Aegis Padlock Fortress 2 Tb Portable Hard Drive - 2.5' External - Black

ApricornNeweggHDD

Capacity

2TB

Price

$330.38

$/GB

$0.165

Check Price at Newegg
336

iStorage diskAshur PRO2 HDD 3TB Secure portable Hard Drive FIPS Level 3 certified - password protected, dust and water resistant, military grade

iStorageNeweggHDD

Capacity

3TB

Price

$509.95

$/GB

$0.170

Check Price at Newegg
337

Seagate 2TB The Mandalorian Drive Special Edition FireCuda External Hard Drive USB 3.2 Gen 1 Model STKL2000405

SeagateNeweggHDD

Capacity

2TB

Price

$347.03

$/GB

$0.174

Check Price at Newegg
338

BUFFALO 1TB MiniStation Extreme NFC Portable Hard Drive USB 3.0 Micro-B Model HD-PZN1.0U3B Black

BUFFALONeweggHDD

Capacity

1TB

Price

$174.25

$/GB

$0.174

Check Price at Newegg
339

Apricorn Aegis Fortress 2 TB Hard Drive - External - USB 3.0

ApricornNeweggHDD

Capacity

2TB

Price

$351.69

$/GB

$0.176

Check Price at Newegg
340

ADATA HV620S Ultra Slim 1 TB USB 3.1 Scratch-Resistant External Hard Drive - Black (AHV620S-1TU3-CBK)

ADATANeweggHDD

Capacity

1TB

Price

$181.99

$/GB

$0.182

Check Price at Newegg
341

Silicon Power 1TB Armor A80 Portable Hard Drive USB 3.0 Model SP010TBPHDA80S3B Blue

Silicon PowerNeweggHDD

Capacity

1TB

Price

$184.99

$/GB

$0.185

Check Price at Newegg
342

iStorage diskAshur2 HDD 2TB Red - Secure portable hard drive - Password protected, dust and water resistant, portable, military grade hardware

iStorageNeweggHDD

Capacity

2TB

Price

$374.95

$/GB

$0.187

Check Price at Newegg
343

iStorage diskAshur2 HDD 2TB Green - Secure portable hard drive - Password protected, dust and water resistant, portable, military grade hardware

iStorageNeweggHDD

Capacity

2TB

Price

$374.95

$/GB

$0.187

Check Price at Newegg
344

iStorage diskAshur2 HDD 2TB Black - Secure portable hard drive - Password protected, dust and water resistant, portable, military grade hardware

iStorageNeweggHDD

Capacity

2TB

Price

$374.95

$/GB

$0.187

Check Price at Newegg
345

iStorage diskAshur2 2TB Blue - Secure portable hard drive - Password protected, dust and water resistant, portable, military grade hardware

iStorageNeweggHDD

Capacity

2TB

Price

$374.95

$/GB

$0.187

Check Price at Newegg
346

LaCie Rugged 1 TB USB 3.0 Mini Disk Portable Hard Drive 301558

LaCieNeweggHDD

Capacity

1TB

Price

$189.99

$/GB

$0.190

Check Price at Newegg
347

SanDisk 1TB G-DRIVE ArmorATD 2.5' External USB 3.2 (Gen 1) Type C 130 MB/s Maximum Read Transfer Rate Portable Hard Drive Space Gray

SanDiskNeweggHDD90d low

Capacity

1TB

Price

$194.99

$/GB

$0.195

Check Price at Newegg
348

HWAYO 120GB Portable External Hard Drive USB3.1 Type C Ultra Slim 2.5'' HDD

HWAYOAmazonHDD

Capacity

120 GB

Price

$23.99

$/GB

$0.200

Check Price at Amazon
349

Silicon Power 1TB Armor A60 Shockproof and Water-Resistant Portable Hard Drive USB 3.0 Model SP010TBPHDA60S3K Black

Silicon PowerNeweggHDD

Capacity

1TB

Price

$211.99

$/GB

$0.212

Check Price at Newegg
350

APRICORN 1TB Aegis Padlock External Hard Drive with 256-bit AES Encryption USB 3.0 Model A25-3PL256-1000 Black

APRICORNNeweggHDD

Capacity

1TB

Price

$233.47

$/GB

$0.233

Check Price at Newegg
351

WD 1TB My Passport Portable Storage USB 3.2 Gen 1 - Blue - WDBYVG0010BBL-WESN

Western DigitalNeweggHDD

Capacity

1TB

Price

$253.26

$/GB

$0.253

Check Price at Newegg
352

iStorage diskAshur2 HDD 1TB Blue - Secure portable hard drive - Password protected, dust and water resistant, portable, military grade hardware

iStorageNeweggHDD

Capacity

1TB

Price

$294.95

$/GB

$0.295

Check Price at Newegg
353

iStorage diskAshur2 HDD 1TB Black - Secure portable hard drive - Password protected, dust and water resistant, portable, military grade hardware

iStorageNeweggHDD

Capacity

1TB

Price

$294.95

$/GB

$0.295

Check Price at Newegg
354

iStorage diskAshur2 HDD 1TB Red - Secure portable hard drive - Password protected, dust and water resistant, portable, military grade hardware

iStorageNeweggHDD

Capacity

1TB

Price

$294.95

$/GB

$0.295

Check Price at Newegg
355

iStorage diskAshur2 HDD 1TB Green - Secure portable hard drive - Password protected, dust and water resistant, portable, military grade hardware

iStorageNeweggHDD

Capacity

1TB

Price

$294.95

$/GB

$0.295

Check Price at Newegg
356

ORICO 512GB Portable External Hard Drive USB 3.2 Gen2X2 USB-C Up to 2060 MB/s

ORICONeweggHDD

Capacity

512GB

Price

$169.99

$/GB

$0.332

Check Price at Newegg
357

APRICORN 500GB Aegis Padlock External Hard Drive with 256-bit AES Encryption USB 3.0 Model A25-3PL256-500 Black

APRICORNNeweggHDD

Capacity

500GB

Price

$170.69

$/GB

$0.341

Check Price at Newegg
358

iStorage diskAshur PRO2 HDD 1TB Secure portable Hard Drive FIPS Level 3 certified - password protected, dust and water resistant, military grade

iStorageNeweggHDD

Capacity

1TB

Price

$349.95

$/GB

$0.350

Check Price at Newegg
359

iStorage diskAshur2 HDD 500GB Green - Secure portable hard drive - Password protected, dust and water resistant, portable, military grade hardware

iStorageNeweggHDD

Capacity

500GB

Price

$199.95

$/GB

$0.400

Check Price at Newegg
360

iStorage diskAshur2 HDD 500GB Blue - Secure portable hard drive - Password protected, dust and water resistant, portable, military grade hardware

iStorageNeweggHDD

Capacity

500GB

Price

$199.95

$/GB

$0.400

Check Price at Newegg
361

iStorage diskAshur2 HDD 500GB Red - Secure portable hard drive - Password protected, dust and water resistant, portable, military grade hardware

iStorageNeweggHDD

Capacity

500GB

Price

$199.95

$/GB

$0.400

Check Price at Newegg
362

iStorage diskAshur2 HDD 500GB Black - Secure portable hard drive - Password protected, dust and water resistant, portable, military grade hardware

iStorageNeweggHDD

Capacity

500GB

Price

$199.95

$/GB

$0.400

Check Price at Newegg
363

APRICORN Aegis Padlock Fortress 500GB USB 3.0 FIPS 140-2 Encrypted External Hard Drive With PIN Access

APRICORNNeweggHDD

Capacity

500GB

Price

$211.38

$/GB

$0.423

Check Price at Newegg
364

Apricorn Aegis Padlock A25-3Pl256-500F 500 Gb Portable Hard Drive - 2.5' External - Black

ApricornNeweggHDD

Capacity

500GB

Price

$219.00

$/GB

$0.438

Check Price at Newegg
365

DataLocker DL4 FE 1TB USB 3.2 Portable External Hard Drive DL41TBFE

DataLockerNeweggHDD

Capacity

1TB

Price

$448.32

$/GB

$0.448

Check Price at Newegg
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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 906+ 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 $0.023/GB, while the average across all drives is $0.200/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?

TypeTypical $/GBMax CapacityBest For
3.5" Desktop HDD$0.015–0.02520TB+Desktop PC, NAS, media server
2.5" Laptop HDD$0.025–0.0455TBLaptop upgrade, portable use
External HDD$0.020–0.04020TB+Backup, portable storage, archiving

Frequently Asked Questions About Buying Hard Drives

What is the cheapest hard drive per GB right now?
The cheapest HDD storage per gigabyte is currently $0.0232/GB. Large capacity 3.5" desktop drives (6TB+) from Seagate or WD consistently offer the lowest price per gigabyte in the HDD category.
Is it better to buy one large hard drive or multiple smaller ones?
One large drive is almost always cheaper per GB. However, multiple drives provide redundancy — if one fails, you don't lose everything. For important data, consider buying two drives and keeping backups on both.
Should I buy 5400 RPM or 7200 RPM?
For desktop use or a NAS with active read/write workloads, 7200 RPM is noticeably faster and worth the small premium. For cold storage, archival backups, or always-on low-activity drives, 5400 RPM runs cooler, quieter, and uses less power.
When is the best time to buy cheap hard drives?
Black Friday, Cyber Monday, and Amazon Prime Day typically have the best deals. However, prices fluctuate year-round. We update our rankings daily so you can always find the current best value.
What brands make the most reliable hard drives?
Seagate, Western Digital (WD), and Toshiba are the three major HDD manufacturers. All produce reliable drives at different price points. Seagate Barracuda and WD Blue are popular desktop choices; WD Red and Seagate IronWolf are designed for NAS use.

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.

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