The Bigger the Drive, the Better the Deal
Something counter-intuitive is happening across all three capacity tiers tracked this week: buying more storage is actively getting you a better rate per gigabyte, and the gap is substantial.
The cheapest per-GB option in the 1TB market sits at $0.144/GB. Jump to 2TB and that floor drops to $0.115/GB. Go all the way to 4TB and you hit $0.1057/GB — a 27% improvement over what you’d pay at the 1TB level. This isn’t a small rounding difference; it’s a genuine structural inversion that should push any buyer planning a 1TB purchase to seriously reconsider.
The 4TB leader right now is the Ediloca EN870 4TB, currently at check current price. It carries 1,100 reviews and a 4.6 rating — not a mystery brand with two reviews, but a drive with enough real-world feedback to have some confidence in. The 4TB median across the market sits at $552.50, so this drive sits comfortably below that.
Worth noting: Ediloca’s 1TB equivalent, the EN870 1TB, is the cheapest 1TB on the market at $162.99. Same brand, same 1,100-review base, but you’re paying a worse rate per gigabyte. If you have an M.2 slot free, the 4TB math is hard to ignore.
This Week’s Real Price Mover: Crucial P310 2TB
The most interesting single-day price movement belongs to the Crucial P310 2TB, which dropped 11.8% in a single day. It’s currently $284.90, which puts it well under the 2TB market average of $326.98. With 9,800 reviews and 500+ units bought last month, this is one of the most proven value drives in the 2TB category.
Also dropping: the BIWIN Black Opal NV7400 2TB fell 30.7% in a day — the steepest single-day drop in the dataset. BIWIN has 693 reviews and a 4.7 rating, which is solid, though only 50 people bought it last month. Worth watching if the price holds.
WD_BLACK Is Dominating What People Actually Buy
Four of the top ten most-purchased drives this week are WD_BLACK products. The SN7100 1TB leads with 2,000 units bought last month, currently at $189.99. The SN7100 2TB clocks in with 1,000 purchases and holds the Amazon’s Choice badge at $289.99.
Both use next-gen TLC NAND and hit 7,250 MB/s read. For buyers who want a known-quantity drive from a brand with strong RMA support, the SN7100 family is where the market is voting with its wallets.
| Model | Price | $/GB | Capacity | Gen | Read | Rating | |
|---|---|---|---|---|---|---|---|
| WD_Black SN7100 1TB NVMe | $189.99 | $0.1900 | 1TB | Gen 4 | 7,250 MB/s | 4.8 ★ | Buy → |
| WD_Black SN7100 2TB NVMe | $289.99 | $0.1450 | 2TB | Gen 4 | 7,250 MB/s | 4.8 ★ | Buy → |
| WD_Black SN7100 4TB NVMe | $557.00 | $0.1393 | 4TB | Gen 4 | 7,000 MB/s | 4.8 ★ | Buy → |
The SN7100 4TB also shows 500 buys last month at $557.00 — making it one of the better high-capacity picks from a brand with genuine track record.
Gen 5 Premium Is Down to 14.9% — But Check What You’re Buying
Gen 5 used to demand a serious price tax. Right now, Gen 5 drives average just 14.9% more per GB than Gen 4. That’s closing fast, and for some use cases — video editing, large file transfers, AI workloads — that premium starts to make sense.
The on-paper flag-bearers are the WD_Black SN8100 and Samsung 9100 PRO. But there are also bargain-priced Gen 5 drives from brands like Fanxiang and SSK that deserve scrutiny. A few specifics: the SSK 1TB Gen 5 has zero reviews. The fanxiang Gen 5 1TB sits at 4.1 stars across 22 reviews. These aren’t necessarily bad drives, but you’re flying mostly blind.
If you want a Gen 5 drive with a real review base and validated performance, check out the Best Gen 5 NVMe roundup — the options there have been stress-tested with actual data.
The Renewed WD_Black SN770: Best 2TB $/GB, But Know What You’re Getting
The “best per GB” winner in the 2TB tier is the WD_Black SN770 2TB Renewed at $249.98. 500 units bought last month, rated 4.9 out of 5 — but only 17 reviews. It’s a certified refurbished unit, which Amazon labels “Renewed.”
If you’re comfortable buying renewed hardware and understand what that means (Amazon’s refurb standards, no original warranty), this is legitimately excellent value. If you need new-in-box with a full manufacturer warranty, look elsewhere. The Kingston NV3 1TB at $161.77 — the most-purchased drive this week at 3,000 units — gives you a proven new-condition option at the 1TB tier.
Watch List: Low-Review Bargains at 4TB
There’s a cluster of 4TB drives priced well below the $640.49 average but with very thin review counts. A 4TB drive with one review (rated 5 stars, brand name literally “4TB”) isn’t something I’d put in a gaming rig. The Fanxiang S790R 4TB with 6 reviews at an attractive price is less alarming — Fanxiang has broader brand history — but it’s still early-stage for that specific SKU.
The sweet spot for 4TB right now if you want value and track record: the Fikwot FN955 4TB at $509.99 (1,100 reviews, 4.6 stars, TLC NAND) or the WD_Black SN7100 4TB if you’re willing to spend more for a brand with full warranty support.
One Listing to Avoid
The Samsung 990 PRO “4TB 2 Pack” is showing up in the dataset as a 4TB listing, which makes it look like the priciest drive in the segment. It’s a two-drive bundle — buying two 2TB drives — not a single 4TB. If you’re comparison shopping and see a listing priced at a massive premium versus everything else, check the title carefully for “2 Pack.” The Gigastone 1TB and 2TB two-packs do the same thing and will look inflated if you’re just scanning price per GB numbers.
For the full picture on pricing across all three tiers, see 1TB NVMe Prices, 2TB NVMe Prices, and 4TB NVMe Prices.