Cheapest by capacity
| Capacity | Amazon, per drive | eBay, per drive |
|---|---|---|
| 500 GB | $34.89 | $26.71 |
| 1 TB | $120 | $44.10 |
| 2 TB | $131 | $49.97 |
| 4 TB | $160 | $138 |
| 8 TB | $290 | $290 |
| 16 TB | — | $449 |
| 24 TB | $680 | $687 |
Capacity is rounded to the nearest standard size. Per-drive price = listing price ÷ drives in the pack (eBay includes shipping).
All 42 listings, cheapest per TB first
| Item | Size | Price | Per TB | ||
|---|---|---|---|---|---|
 | 2TB External Hard Drive Portable External Slim Storage PC Mac Laptop Phone 3.0 2 TB | 2 TB | $49.97 | $24.98 | eBay → |
| Seagate Expansion 6TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP6000400) 6 TB | 6 TB | $160 | $26.67 | Amazon → | |
 | Seagate 16TB Expansion External Hard Drive HDD USB 3.0 with Rescue Data Recovery 16 TB | 16 TB | $449 | $28.06 | eBay → |
| Seagate Expansion 24TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP24000400) 24 TB | 24 TB | $680 | $28.33 | Amazon → | |
 | Seagate Expansion 24TB Desktop USB 3.0 External Hard Drive, Black (STKP24000400) 24 TB | 24 TB | $687 | $28.62 | eBay → |
 | Seagate ExpansionPLUS 6TB External Hard Drive HDD - USB 3.0 STKR6000400 6 TB | 6 TB | $200 | $33.33 | eBay → |
 | Seagate Stkr4000400 Expansion Desktop 4tb External Hard Drive - new Black 4 TB | 4 TB | $138 | $34.43 | eBay → |
 | Seagate Expansion External Hard Drive 6TB 6 TB | 6 TB | $209 | $34.81 | eBay → |
 | LaCie Rugged Mini 5 TB HDD External Hard Drive usb 3 stjj5000400 5 TB | 5 TB | $179 | $35.80 | eBay → |
| Seagate One Touch 8TB External Hard Drive Desktop HDD - USB-C Compatible with Most Windows and macOS, Rescue Recovery (… 8 TB | 8 TB | $290 | $36.25 | Amazon → | |
 | Seagate One Touch 8TB External Desktop Hard Drive USB-C Windows Mac HDD 8 TB | 8 TB | $290 | $36.25 | eBay → |
 | New WD Easystore 6TB HDD External USB 3.0 Portable Hard Drive - SEALED 6 TB | 6 TB | $220 | $36.67 | eBay → |
 | UnionSine 2TB Ultra Slim Portable External Hard Drive HDD-USB 3.0 2 TB | 2 TB | $74.00 | $37.00 | eBay → |
 | Seagate Expansion Desktop 4TB HDD External Hard Drive STKR4000400 NEW/SEALED 4 TB | 4 TB | $153 | $38.36 | eBay → |
| Seagate 8TB Expansion Desktop Hard Drive | USB 3.0 (STKP8000400) 8 TB | 8 TB | $316 | $39.50 | Amazon → | |
 | WD Drive PLUS 6TB External Portable Hard Drive - Brand New 6 TB | 6 TB | $240 | $40.00 | eBay → |
 | UnionSine 2TB Ultra Slim Portable External Hard Drive HDD 2 TB | 2 TB | $82.75 | $41.38 | eBay → |
| WD 5TB My Passport, Portable External Hard Drive, Black, backup software with defense against ransomware, and password … 5 TB | 5 TB | $210 | $42.00 | Amazon → | |
| Seagate Portable 5TB External Hard Drive HDD – USB 3.0 for PC, Mac, PS4, & Xbox - 1-Year Rescue Service (STGX5000400), Black 5 TB | 5 TB | $219 | $43.79 | Amazon → | |
 | 1TB Portable External Hard Drive USB 3.0 2.5" HDD Storage Backup PC Mac Laptop 1 TB | 1 TB | $44.10 | $44.10 | eBay → |
| WD 6TB Elements Portable External Hard Drive for Windows, USB 3.2 Gen 1/USB 3.0 for PC & Mac, Plug and Play Ready - WDB… 6 TB | 6 TB | $265 | $44.17 | Amazon → | |
 | 3 Pack 1TB External Hard Drive USB 3.0 Portable HDD 2.5" PC Laptop Mac Backup 3 TB | 3 TB | $133 | $44.37 | eBay → |
 | 1TB External Hard Drive USB 3.0 Portable HDD 2.5" PC Mac Laptop Backup 1 TB | 1 TB | $44.80 | $44.80 | eBay → |
 | 1TB External Hard Drive USB 3.0 Portable HDD 2.5" for PC Laptop Mac Backup 1 TB | 1 TB | $44.85 | $44.85 | eBay → |
 | SUHSAI 1TB External Hard Drive USB 3.0 Portable HDD 2.5" PC Laptop Mac Backup 1 TB | 1 TB | $44.90 | $44.90 | eBay → |
 | Seagate One Touch 4 TB Portable Hard Drive - 2.5" External - STNR4000400 4 TB | 4 TB | $189 | $47.25 | eBay → |
| WD 4TB My Passport, Portable External Hard Drive, Black, Backup Software with Defense Against ransomware, and Password … 4 TB | 4 TB | $190 | $47.44 | Amazon → | |
| Seagate Portable 4TB External Hard Drive HDD – USB 3.0, 1-Year Rescue 4 TB | 4 TB | $190 | $47.50 | Amazon → | |
 | WD 2TB My Passport Portable External Hard Drive (YELLOW) - WDBYVG0020BBK-WESN 2 TB | 2 TB | $96.61 | $48.30 | eBay → |
 | Toshiba Canvio Advance Plus 2TB USB 3.2 Gen 1 Portable Hard Drive HDTCA20XYCAB 2 TB | 2 TB | $97.98 | $48.99 | eBay → |
 | Seagate 1TB External Hard Drive FreeAgent Pro ST310005FPB1E3-RK 1 TB | 1 TB | $49.32 | $49.32 | eBay → |
 | Toshiba Canvio Advance+ 2TB Portable External Hard Drive USB 3.0 Yellow 2 TB | 2 TB | $102 | $50.99 | eBay → |
 | Seagate - Backup Plus - 2TB External Hard Drive USB 3.0 STCA2000100 2 TB | 2 TB | $106 | $52.86 | eBay → |
 | VFENG External Hard Drive 500GB 500 GB | 500 GB | $26.71 | $53.42 | eBay → |
| Western Digital WD 5TB Elements Portable External Hard Drive for Windows, USB 3.2 Gen 1/USB 3.0 for PC & Mac, Plug and … 5 TB | 5 TB | $275 | $55.00 | Amazon → | |
| WD 6TB My Passport, Portable External Hard Drive, Black, Backup Software with Defense Against ransomware, and Password … 6 TB | 6 TB | $330 | $55.00 | Amazon → | |
| LaCie Rugged USB-C, 5TB, Portable External Hard Drive, Drop, Shock, Dust, Rain Resistant, for Mac & PC (STFR5000800) 5 TB | 5 TB | $279 | $55.81 | Amazon → | |
| WD 2TB Elements Portable External Hard Drive for Windows, USB 3.2 Gen 1/USB 3.0 for PC & Mac, Plug and Play Ready - WDB… 2 TB | 2 TB | $131 | $65.60 | Amazon → | |
| 500GB External Hard Drive USB 3.0 and USB-C Mobile HDD 500 GB | 500 GB | $34.89 | $69.78 | Amazon → | |
| Seagate 2TB Portable Hard Drive | USB 3.0 (STGX2000400) 2 TB | 2 TB | $146 | $72.92 | Amazon → | |
| UnionSine 500GB Ultra Slim Portable External Hard Drive HDD-USB 3.0 500 GB | 500 GB | $39.43 | $78.86 | Amazon → | |
| Seagate Portable 1TB External Hard Drive HDD – USB 3.0 for PC, Mac, PlayStation, & Xbox, 1-Year Rescue Service (STGX100… 1 TB | 1 TB | $120 | $120 | Amazon → |
Amazon per TB, by day
typical cheapest, per TB
eBay per TB, by day
typical cheapest, per TB
Amazon as of 2026-11-05 12:12:41 UTC: Amazon's own price, else its lowest new offer, before shipping and tax (via Keepa); product prices and availability are accurate as of the date/time indicated and are subject to change. eBay: new Buy It Now listings from US sellers as of 2026-11-05 UTC, item plus shipping.
Size comes from the seller's unit count or the listing title; check the listing before buying. As an Amazon Associate and eBay Partner, Sharpest earns from qualifying purchases.
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