We’re tracking 269 drives from 52 brands this week across the 1TB, 2TB, and 4TB tiers. The headline story isn’t a big price drop — it’s a structural shift in which capacity tier actually gives you the best deal per byte.
The Value Inversion Is Real and It’s Accelerating
Here’s something that would have seemed absurd two years ago: the cheapest price-per-GB in the entire market right now is at 4TB, not 1TB. The best 1TB $/GB comes in at $0.144, the best 2TB at $0.115 — and the best 4TB undercuts both at $0.1057. That’s a consistent staircase downward as capacity goes up, and it’s getting steeper.
The median 1TB NVMe is $184.99, the median 2TB is $304.99, and the median 4TB is $554.99. The 4TB median is less than 3x the 1TB median despite having 4x the storage. If you’re buying a 1TB drive right now for a build that might need more space in a year, the math increasingly favors just going straight to 4TB.
The value leader at 4TB this week is the Ediloca EN870 4TB, currently at $459.99. It has 1,100 reviews and a 4.6 rating — not a no-name throwaway. For the 1TB tier, the same Ediloca EN870 family holds the best $/GB spot at check current price.
Ediloca won’t be for everyone — they’re not WD_Black or Samsung — but the review counts are legitimate and the ratings are solid. Worth considering if you’re storage-limited on a budget.
WD_Black Is What People Are Actually Buying
Four of the top ten most-purchased drives this week are WD_Black, including the top two spots. The WD_Black SN7100 1TB leads the chart with 2,000 units bought last month, and the SN7100 2TB pulled 1,000 more. The SN7100 line uses next-gen TLC NAND and hits 7,250 MB/s reads — it’s legitimately fast Gen 4 hardware, not a brand-name tax situation. The SN7100 2TB also carries the Amazon’s Choice badge this week, which doesn’t mean much on its own but reflects consistent sales volume and low return rates.
| Model | Price | $/GB | Capacity | Gen | Read | Rating | |
|---|---|---|---|---|---|---|---|
| WD_Black SN7100 1TB NVMe | $207.99 | $0.2080 | 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 | $549.99 | $0.1375 | 4TB | Gen 4 | 7,000 MB/s | 4.8 ★ | Buy → |
The SN7100 lineup also extends to 4TB — the SN7100 4TB saw 500 purchases last month and is one of the few high-volume, well-reviewed 4TB options with TLC NAND confirmed. It’s priced higher than the Ediloca but it comes with WD’s track record and warranty support.
The most-bought drive overall? The Kingston NV3 1TB with 3,000 units last month. It only hits 6,000 MB/s read — slower than the SN7100 — but it’s currently $163.99 with 12,500 reviews. Hard to argue with that kind of volume. It’s the budget workhorse of the 1TB market right now.
The Best Drops This Week: BIWIN and Crucial P310
Two drives worth flagging on the 1-day price movement list.
The BIWIN NV7400 2TB dropped 30.7% overnight. That’s a big move. BIWIN isn’t a household name in North America, but this drive has 693 reviews at 4.7 stars — that’s a real sample size. It’s a Gen4 drive hitting 7,450 MB/s reads. Currently at $249.99, with only 50 bought last month, which means it’s flying under the radar. If you’re comfortable with a less-familiar brand and the price holds, this is worth a serious look.
The Crucial P310 2TB also dropped 11.8% and is now $284.99. The P310 is one of the most-reviewed drives in the market (9,800 ratings at 4.8 stars), 500 bought last month, and Crucial’s QLC-based budget line genuinely delivers for typical gaming and everyday use. If you want a proven commodity 2TB at a solid price, this is it.
The Crucial P310 1TB M.2 2230 also dropped, now at $208.90, with 300 bought last month. If you’re upgrading a Steam Deck or ROG Ally, the 2230 form factor makes this particularly relevant.
Gen 5 Is Getting Closer — But “Close” Still Means 15% More
The Gen 5 premium has narrowed to 14.9% over Gen 4 on average this week. That sounds narrow until you realize that most people are buying 2TB drives and the Gen 5 median at 2TB is still well above Gen 4. You’re paying meaningfully more for peak sequential speeds that most games and apps can’t saturate.
The exception worth noting: the Lexar NM1090 PRO 2TB Gen 5 dropped 5% overnight to check current price. It hits 14,000 MB/s reads and has 72 reviews at 4.5 stars — early enough that you’re taking some risk, but if you specifically need Gen 5 performance for AI workloads or heavy content creation, this is one of the more reasonably priced options for that tier.
For most PC builders and PS5 upgraders, Gen 4 remains the call. Check the Best Gen 4 NVMe guide if you want the full breakdown.
Watch Out: The Sketchy End of the Market
A few listings deserve skepticism this week.
Multi-packs masquerading as single drives: The Samsung 990 PRO 4TB 2-Pack is listed as 4TB but it’s actually two 2TB drives at $1747.00. The Gigastone 2-Pack listings are similarly categorized under their per-drive capacity. These will look outrageously expensive if you don’t read the fine print.
No-name brands with one review: There’s a listing branded literally “4TB” with a single review at 5 stars. Instant skip. Similarly, the KOOTION 2TB has 4 reviews and a perfect 5-star score — that’s not enough signal to trust. Avoid anything under 10 reviews regardless of the rating, especially when there are well-reviewed alternatives at similar prices.
The fanxiang S790R 4TB is interesting — good specs, TLC NAND, heatsink, 7,350 MB/s reads — but only 6 reviews. Fanxiang has proven itself on other SKUs (the S880 has 3,600+ reviews), so this is more of a “wait for the review count to build” situation than a red flag.
The Short Version
If you’re buying 1TB, the Kingston NV3 at $163.99 is the crowd-proven budget pick, while the WD_Black SN7100 at $207.99 is the performance upgrade. At 2TB, the Crucial P310 just dropped and represents the safest value play. At 4TB, the value math increasingly points to this tier — and with the WD_Black SN7100 4TB now consistently available, you don’t have to compromise on brand trust to get there.
Price movement this week was almost entirely 1-day moves — 88% of drives showed zero 7-day change, which suggests the market is broadly stable with only spot-deal activity. Nothing dramatic is happening at the macro level, which makes the individual drops on BIWIN and Crucial worth acting on if they fit your needs.