Cheap Hard Drives: Today's Lowest Tracked Prices

By PriceSniff · Published September 5, 2026 · Updated September 5, 2026

"Cheap" is a trap when it comes to hard drives. The lowest sticker price in a search result is usually a small drive with terrible cost per terabyte — you pay less today and more per byte stored than almost any other buyer. This page ranks the drives we track by what storage actually costs, so cheap means good value, not just small number.

The cheapest storage per terabyte right now

These two classes — bare 3.5" internals and desktop externals (the same mechanisms in a powered enclosure) — are where genuinely cheap storage lives. If your machine can take one, start here.

Cheapest internal hard drives

For desktops, NAS boxes, and backup targets. Ranked by live price, cheapest first:

Cheapest external and portable hard drives

Desktop externals give you near-internal pricing in a plug-in box. Portables cost more per terabyte but run off a single USB cable:

Cheap SSDs, if speed matters more than bulk

A hard drive is the wrong buy for a boot drive or working files. If that's what you're actually shopping for, budget SATA SSDs are the crossover point:

How to buy a cheap hard drive without getting burned

Don't buy the smallest capacity. The bottom of a product line is where per-terabyte cost is worst. Stepping up one or two capacities usually costs little and stores much more.
Check the price history first. Every drive here links to a page with its tracked price chart. A drive at its historical low is a real deal; a drive at its everyday price with a sale banner is not.
Watch for refurbished and recertified listings. They can be legitimate value, but compare against new-drive $/TB before assuming the discount is worth the shorter warranty.
Know what class you're buying. A cheap portable can cost more per terabyte than a mid-priced desktop external. The tables above stay separated by class so you're comparing like with like.

Still deciding how much capacity you need? Our terabyte cost guide breaks down the math, the hard drive price tracker shows where prices are trending, and the full storage deals page covers SSDs in more depth. If you're waiting on one particular drive, the Walmart price tracker covers how alerts work.

More live value rankings

Frequently asked questions

What is the cheapest type of hard drive?

Per terabyte stored, internal 3.5" desktop drives and desktop external drives (which use the same mechanisms) are consistently the cheapest storage you can buy. Portable 2.5" drives cost more per terabyte in exchange for bus power and pocketability. The live stats at the top of this page show today's actual best cost per terabyte in each class.

Are cheap hard drives reliable?

Price and reliability are only loosely linked — inexpensive high-capacity drives from major manufacturers are the same hardware sold into bulk storage everywhere. What matters more: buy from a listing with a clear warranty, back up anything important regardless of drive price (every drive eventually fails), and treat unusually cheap refurbished listings as shorter-warranty purchases, not equivalents to new.

Should I buy a cheap hard drive or spend more for an SSD?

They solve different problems. Buy a hard drive for bulk capacity — backups, media libraries, NAS storage — where cost per terabyte is what matters. Buy an SSD for your operating system, applications, and working files, where speed is what matters. A typical desktop uses one of each; an SSD-only build just needs a bigger budget per terabyte.

Why is the smallest drive rarely the best deal?

Because drive cost doesn't scale linearly with capacity — the enclosure, controller, and logistics cost roughly the same whether the platters store 1TB or 8TB. That fixed overhead makes small drives expensive per terabyte. The value sweet spot is usually in the middle-to-upper capacities of a product line.

How often are these prices updated?

We collect prices from retailer listings automatically on a rolling schedule throughout the day, typically refreshing each tracked drive at least twice daily. Each listing shows the price we observed and links to a product page with the exact time we last confirmed it, plus full price history.