Best External Drives by Price per TB
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The best external drive deal right now is whichever offer on this page has the lowest price per TB — a desktop HDD for shelf backups, a portable SSD if it needs to travel — from this live-ranked list of current Amazon prices.
External drives are the easiest backup you can buy: plug in, copy, unplug. This list ranks current Amazon external and portable drive offers by price per TB, refreshed with every snapshot.
The category mixes desktop external hard drives (cheapest per TB, need wall power at larger sizes) and portable SSDs (pricier, pocketable, fast). The blurbs flag which is which so the ranking stays honest.
Portable SSD 1TB External Solid State Drive USB 3.0 Slim Metal
$22.99 · $22.99/TB as of Oct 20, 12:14 AM EDT
Ranks #1 at $22.99/TB — 87% below the typical 1TB external SSD. New condition, USB.
Avolusion PRO-H1 14TB 7200RPM USB 3.2 Gen2 (10Gbps) External Hard Drive (for Windows or MacOS Desktop PC/Laptop) (Renewed)
$339.99 · $24.29/TB as of Oct 20, 12:14 AM EDT
Ranks #2 at $24.29/TB — 33% below the typical external HDD across all sizes. Renewed condition, USB.
8TB External Hard Drive Portable,USB 3.0 for PC Mac Laptop Desktop HDD | High-Speed Data Transfer,Plug and Play External HDD Storage
$199.98 · $25.00/TB as of Oct 20, 12:14 AM EDT
Ranks #3 at $25.00/TB — 38% below the typical 8TB external HDD. New condition, USB.
Avolusion PRO-H1 Series 14TB 7200RPM USB 3.2 Gen2 (10Gbps) External Hard Drive (for Windows or MacOS Desktop PC/Laptop)
$359.99 · $25.71/TB as of Oct 20, 12:14 AM EDT
Ranks #4 at $25.71/TB — 1% below the typical 14TB external HDD. New condition, USB.
Avolusion PRO-T8 Series 14TB USB 3.0 External Hard Drive for WindowsOS Desktop PC/Laptop (Black) - 2 Year Warranty
$359.99 · $25.71/TB as of Oct 20, 12:14 AM EDT
Ranks #5 at $25.71/TB — 1% below the typical 14TB external HDD. New condition, USB, 2 yr warranty.
OSENTRiX BX100 14TB USB 3.2 Gen 2 USB-C External Hard Drive for Windows or MacOS Desktop PC/Laptop
$359.99 · $25.71/TB as of Oct 20, 12:14 AM EDT
Ranks #6 at $25.71/TB — 1% below the typical 14TB external HDD. New condition, USB.
Avolusion PRO-G2 14TB USB 3.2 Gen 2 (10Gbps) USB-C External Hard Drive for Windows/MacOS (Silver)
$359.99 · $25.71/TB as of Oct 20, 12:14 AM EDT
Ranks #7 at $25.71/TB — 1% below the typical 14TB external HDD. New condition, USB.
NEW 14TB Retro Gaming Hard Drive Preloaded with 98000+ Games | Plug & Play for 7 Gaming Systems | 9800+ 3D & 1000+ High-End PC Games | USB 3.1 Portable External Hard Drive for Windows PC 7/8/10/11
$369.00 · $26.36/TB as of Oct 20, 12:14 AM EDT
Ranks #8 at $26.36/TB — 1% above the typical 14TB external HDD. New condition, USB.
Seagate Expansion 24TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP24000400)
$679.99 · $28.33/TB as of Oct 20, 12:14 AM EDT
Ranks #9 at $28.33/TB — 46% below the typical 24TB external HDD. New condition, USB.
OSENTRiX BX100 16TB USB 3.2 Gen 2 USB-C External Hard Drive for Windows or MacOS Desktop PC/Laptop
$459.99 · $28.75/TB as of Oct 20, 12:14 AM EDT
Ranks #10 at $28.75/TB — 12% below the typical 16TB external HDD. New condition, USB.
How the ranking and deal scores work
Compare live hard disk prices for all matching deals →
What to look for
Match the drive to the job: for scheduled backups that sit on a desk, a desktop external HDD gives the most capacity per dollar. For moving files between machines or editing on the go, a portable SSD is worth its premium.
Check the port and cable: USB-C 10 Gbps is the current sweet spot. A fast SSD behind a 5 Gbps port wastes half its speed, while a spinning external drive won't saturate even USB 3.0 — don't pay for interface speed an HDD can't use.
One external copy is a convenience, not a backup strategy. The drives at the top of this list are cheap enough to buy in pairs — keep one offsite or pair the external with cloud storage.
FAQ
Are external drives reliable enough for backups?
Yes, with the usual caveat that any single drive can fail. Use at least two independent copies of anything you can't replace, ideally in two places.
Why are external drives sometimes cheaper per TB than internal ones?
Retail promotions on popular external models are aggressive, and manufacturers bin drives across lines. When an external undercuts internals at the same capacity, it's a genuine arbitrage — this page makes those moments visible.
Portable SSD or external HDD?
HDD for capacity per dollar and shelf backups; SSD for speed, silence, and surviving being carried around. If it lives in a bag, buy the SSD.