Used hard drives are one of the best deals in home storage — if you catch them at the right moment. The problem isn't supply. eBay has thousands of used drives listed right now. The problem is that "the right moment" lasts about six hours, and you're at work.
This is the problem Hardware Hunter was built to solve.
Why Hard Drive Pricing Is Weird
New HDDs have a predictable floor. Shucking Western Digital Elements drives from Best Buy has been the go-to move for years — you're paying for the enclosure and getting a data center drive cheaper than the bare equivalent.
Used drives are different. The supply is lumpy and the pricing is incoherent. On any given day you'll find:
- A decommissioned enterprise HGST at $18 because the seller doesn't know what they have
- The same model listed at $65 because someone does
- A batch of 8TB WD Reds at $28/each from a datacenter liquidation that's gone by noon
- Seagates with 50k hours that the listing doesn't mention
The floor exists but it moves. And the ceiling is just "whatever someone will pay."
What Matters in a Used Drive Listing
Not all used drives are equal, and the listing quality tells you a lot before you even look at the price.
S.M.A.R.T. data is everything. Hours powered on, reallocated sectors, pending sectors — these numbers tell you whether you're buying a drive with 500 hours on it or one that's been running in a production NAS since 2018. A seller who posts a CrystalDiskInfo screenshot is telling you something about how much they care.
Account age matters more than feedback score. A three-month-old account selling 40 hard drives isn't necessarily a scam, but it's worth a harder look than someone who's been selling electronics on eBay since 2011.
Price vs floor. There's a real price floor for most capacities. 8TB drives below $25 are either a genuine liquidation deal or something is wrong with them. Both happen. The difference is whether the listing has any supporting detail.
"Tested and working" means nothing. It's the default text. What you want is "tested with HDDScan," a photo of the actual drive, and a seller who's answered questions before.
How Hardware Hunter Watches HDDs
When you set up a hunt, you define what you're looking for — capacity range, price ceiling, condition tolerance. We do the rest.
Every few hours we scan eBay for matching listings. Each one goes through a scoring pipeline:
1. Price benchmark check — we track historical sold prices for comparable drives and flag listings that hit the 25th percentile or below
2. Scam signal check — account age, listing pattern, price relative to floor, location specificity
3. LLM evaluation — an AI pass that reads the actual listing text and looks for things that are hard to catch with rules: vague wording, missing details, contradictions between the title and description
4. Score → decision — ALERT (you want to know now), WATCH (on the radar), or SKIP (not worth your time)
You get an alert when something worth your attention shows up. Not every listing. Not a daily digest of mediocre deals. The ones that are actually worth clicking.
What Prices Look Like Right Now
As of early 2026, the rough benchmarks for used HDDs in good condition:
| Capacity | Good price | Why you'd see it lower |
|---|---|---|
| 16TB+ | $65–95 | Getting scarcer, mostly enterprise |
These move. Liquidation events can drop them 30–40% for a few days. That's the window.
The Part That's Actually Hard
Watching for deals manually is a form of tax you pay on having preferences. You open eBay, sort by newly listed, scroll until you find something, close the tab, repeat tomorrow. You miss the liquidation event that happened at 2 PM on a Tuesday.
An automated pricewatch doesn't have working hours. That's the whole point.
If you're building out ZFS storage, expanding a NAS, or just stockpiling for the inevitable drive death, set up a hunt and let it run. The deals are there. The problem has always been catching them.
Stop checking manually.
Set up a hunt and get alerted when the right deal hits the right price.
Get started free →