HDD|Hunt

Cheapest Storage Per TB on Amazon Right Now (April 2026)

By Jake Torres ·
deals price per tb amazon buying guide cheap storage

I get asked this question more than any other: “What’s the cheapest hard drive per TB right now?” Fair enough — it’s literally why I built HDDHunt. But the answer changes constantly, so let me walk you through what’s cheapest today, what’s consistently cheap, and how to never overpay.

The Current Champions (April 2026)

I pull prices from Amazon US and UK every hour. Here’s what’s sitting at the top of the price-per-TB rankings right now:

Amazon US — Cheapest New Drives

The best value on Amazon US right now is in the 14-18TB range, where enterprise drives have been priced aggressively:

  1. Seagate Exos X16 16TB — Consistently one of the cheapest per-TB options. Enterprise CMR, 5-year warranty, and it regularly dips below $12/TB. This is the drive I point most people to.

  2. WD Ultrastar DC HC550 16-18TB — Neck and neck with the Exos. Sometimes cheaper, sometimes not — it literally changes day to day. Both are excellent.

  3. Seagate Exos X18 18TB — When it’s in stock and priced right, the 18TB hits amazing per-TB numbers. The per-unit price is higher, but you’re getting more TB per drive bay.

  4. Toshiba MG Series 14-16TB — Often overlooked because Toshiba doesn’t have the brand recognition of Seagate or WD in the consumer space. But these are solid enterprise drives. The MG08 and MG09 series show up at competitive prices regularly.

For live numbers, head to the best HDD deals page — it’s sorted by price per TB and updates hourly.

Amazon US — Cheapest Refurbished Drives

If you’re comfortable with refurbished, the per-TB prices drop significantly:

Refurbished enterprise pulls in the 10-14TB range frequently hit $6-9/TB on Amazon and Amazon Marketplace sellers. These are drives pulled from data centers after 3-5 years of service, tested, and resold with a seller warranty (typically 1-2 years, sometimes 90 days).

Are they worth it? Depends on your risk tolerance:

  • For a NAS with RAID/parity: Absolutely. If one drive dies, you swap it and rebuild. At $7/TB vs $12/TB, the savings fund your replacement drive.
  • For a single drive with no backup: Risky. A refurbished drive has already lived a life. It might last another 5 years, or it might last 5 months.

I run a mix of new and refurbished in my own array. The math works out in your favor over time, especially with RAIDZ2.

Amazon UK — Best Value

UK pricing runs 15-25% higher than US on average due to VAT and exchange rates. The sweet spot is similar — 12-16TB enterprise drives — but the absolute per-TB numbers are higher.

Check the Amazon UK marketplace page for current UK-specific pricing. The best UK deals right now tend to be:

  1. Seagate Exos X16 16TB — Same drive, same reliability, UK pricing
  2. Seagate IronWolf 12TB — Sometimes hits aggressive pricing on Amazon UK
  3. Toshiba N300 12-14TB — The N300 is Toshiba’s NAS line and occasionally has great UK pricing

Why the 14-18TB Range Is the Sweet Spot

This isn’t random. There’s a reason mid-high capacity drives offer the best per-TB value:

Manufacturing economics: Drive manufacturers invest heavily in their highest-capacity platforms. The 14-18TB range represents the current “mature” node — the production lines are fully ramped, yields are high, and competition between Seagate, WD, and Toshiba is fierce. That competition drives prices down.

Channel dynamics: Enterprise customers (cloud providers, data centers) buy 14-18TB drives in massive volumes. The consumer retail market gets the overflow and pricing benefits from those economies of scale.

The top-end premium: 20TB+ drives are still at the bleeding edge. Lower yields, less competition, higher prices per TB. Give it another year and those will become the sweet spot.

The bottom-end penalty: 4-8TB drives cost almost as much to manufacture as larger drives (same motor, same PCB, same packaging) but hold less data. You’re paying a floor price for the drive mechanism, regardless of how much data it stores.

The Capacity Trap: Why Cheap Small Drives Are Actually Expensive

This is the most common mistake I see. Someone needs 8TB of storage and buys two 4TB drives at $70 each because each drive looks cheap. That’s $140 for 8TB, or $17.50/TB.

Meanwhile, a single 16TB Exos at $180 gets you double the capacity at $11.25/TB. You’d pay $90 for 8TB worth of capacity — 36% less. And you used one drive bay instead of two.

Unless you’re physically constrained to small drives (laptop, specific enclosure), always check whether a larger drive is cheaper per TB. On HDDHunt, I sort by price per TB exactly for this reason — the best value floats to the top, regardless of total price.

External Drives: The Shucking Angle

External USB hard drives sometimes offer better per-TB pricing than internal drives because manufacturers subsidize them to move units. The r/DataHoarder community calls the practice of removing the internal drive from an external enclosure “shucking.”

The pros:

  • Sometimes 10-20% cheaper per TB than buying the bare internal drive
  • Inside you typically find a standard 3.5” drive (WD White Label, which is often a relabeled Red or Ultrastar)

The cons:

  • Voids the external warranty
  • You don’t know exactly which internal drive model you’ll get
  • Some drives have a 3.3V pin issue that requires a Kapton tape mod for certain PSUs

I don’t track internal-vs-external drive model matching on HDDHunt (there’s too much variance), but I do track external hard drive deals by price per TB. If you see an external beating the internal price, it might be worth shucking.

How to Actually Get the Best Price

Knowing what’s cheapest right now is step one. Here’s how to consistently buy at the best prices:

1. Track Prices Over Time

Drive prices fluctuate weekly. A drive that’s $12/TB today might be $10.50/TB next week during a lightning deal, or $14/TB if stock gets low. Watching the trend helps you know whether today’s price is genuinely good or just average.

I’m building price history tracking into HDDHunt — it’s coming soon. In the meantime, the deals page updates hourly so you can catch intraday shifts.

2. Watch for Prime Day and Holiday Sales

Amazon’s major sale events consistently deliver the best storage prices of the year:

  • Prime Day (July-ish): 15-25% discounts on popular drive models
  • Black Friday / Cyber Monday: The single best time to buy drives. I’ve seen 30%+ discounts.
  • Back-to-school sales (August): Smaller discounts but still worth watching

Plan your major storage purchases around these events if you can wait.

3. Don’t Ignore Marketplace Sellers

Amazon Marketplace sellers (not just Amazon directly) sometimes list drives significantly cheaper. This is especially true for refurbished and “renewed” enterprise drives. Just check the seller ratings and return policy.

4. Compare Amazon US vs UK

If you’re in the UK, always check both Amazon UK and Amazon US + shipping. Sometimes the US price even with international shipping is cheaper. The reverse is rarely true, but I’ve seen it happen with Toshiba drives.

Use HDDHunt to check both marketplaces side by side — I show Amazon US and UK pricing together.

5. Buy More at Once

Not because of bulk discounts (Amazon rarely offers those), but because shipping is free over a certain threshold and you amortize the time cost of comparison shopping. If you’re building a 4-drive NAS, buy all four drives when pricing is good rather than one at a time.

What I’d Buy Today With $200, $500, and $1,000

Here’s what I’d do at three budget levels, optimizing purely for price per TB:

$200 Budget

One 16TB Seagate Exos X16 — New, full warranty, enterprise reliability. That’s about $12/TB for 16TB of usable space. If you’re on a tight budget, this single drive gives you the best value and you can add more later.

Alternatively: Two refurbished 12TB enterprise drives for ~$85 each — more total capacity (~24TB) but shorter warranty and some risk.

$500 Budget

Three 16TB Exos or Ultrastar drives — That’s 48TB raw. In RAIDZ1 (single parity), you get 32TB usable. In a mirror+stripe (RAID 10), you get 24TB usable but with better redundancy. At ~$165 each during a good sale, this comes out to around $10-11/TB.

This is the sweet spot build for most home users who want a proper NAS setup.

$1,000 Budget

Six 18TB drives — 108TB raw. In RAIDZ2 (dual parity), you get 72TB usable with two-drive fault tolerance. At ~$165-180 each for the 18TB Exos or Ultrastar, this is a serious storage array that’ll handle anything a home user can throw at it.

This is basically the setup I’d recommend for someone who’s done buying drives for the next 2-3 years. Check the enterprise HDD page for current 18TB pricing.

The Tools I Use

Obviously, HDDHunt is my go-to — I literally built it for this. Everything is sorted by price per TB, updated hourly from Amazon, and I show both US and UK pricing.

Beyond that:

  • CamelCamelCamel for Amazon price history on specific ASINs
  • r/DataHoarder for community deal-spotting and drive reviews
  • r/buildapcsales for flash deals that might not hit my tracker yet

But honestly, I built HDDHunt because I got tired of checking all those places manually. The deals page is my first stop, and it should be yours too.

Bottom Line

The cheapest storage per TB on Amazon right now is in the 14-18TB enterprise HDD range, hovering around $10-14/TB for new drives and $6-9/TB for refurbished. The gap between enterprise and consumer pricing has nearly vanished, so go enterprise for the better warranty and reliability.

Don’t buy 4TB drives thinking they’re cheap — they’re the worst value per TB. Don’t buy the first drive you see — check HDDHunt first. And don’t forget that the best price today won’t be the best price next month.

I update prices hourly. Bookmark the best HDD deals page, check back when you’re ready to buy, and let the math do the work.

  • Jake