WD_BLACK SN8100 4TB
The WD_BLACK SN8100 4TB costs $835.00 right now, or $0.209/GB, the lowest price per gigabyte of any WD_BLACK SN8100 capacity. Stepping up to the 8TB costs $1,314.99 more. It is rated for 2,400 TBW, about 1.3 TB of writes a day for 5 years.
Prices update daily and may differ at the retailer. This page contains affiliate links.
Where to buy the WD_BLACK SN8100 4TB
Every in-stock offer we track, cheapest first, across the 3 versions of this drive we list.
- NeweggPart WDS400T1X0M-00CMT0$835.00
- AmazonPart WDS400T1X0M-00CMT0$840.00
- AmazonHeatsink edition · Part SDSP82400TAH-000E0$1,129.99
- NeweggHeatsink edition · Part SDSP82400TAH-000E0$1,129.99
Price history
Lowest in the last 30 days: $835.00. Lowest in 60 days: $835.00.
Show the data as a table
| Date | Lowest price |
|---|---|
| Sep 25, 2026 | $835 |
| Sep 24, 2026 | $835 |
| Sep 23, 2026 | $835 |
| Sep 22, 2026 | $836 |
| Sep 21, 2026 | $836 |
| Sep 20, 2026 | $836 |
| Sep 19, 2026 | $836 |
Lowest in-stock price each day at Newegg and B&H, across every version of this drive we list (including heatsink editions). Lowest point $835.00 on Sep 23; latest $835.00. Amazon prices appear in the offer list but are not charted.
Specifications
Speed (rated)
- Sequential read
- 14,900 MB/s
- Sequential write
- 14,000 MB/s
- Random read (4K)
- 2.3M IOPS
- Random write (4K)
- 2.4M IOPS
- Interface
- PCIe 5.0 x4
A Gen5 drive runs at Gen4 speed in a Gen4 slot. Check your motherboard's M.2 slots.
Endurance
- Rated writes
- 2,400 TBW
- Warranty
- 5 years
That is about 1.3 TB of writes a day for 5 years. A typical gaming PC writes a small fraction of that.
Drive
- Capacity
- 4TB
- Form factor
- M.2 2280
- NAND type
- TLC
- Cache
- DRAM cache
Identity
- Part number
- WDS400T1X0M-00CMT0
- Other versions
- SDSP82400TAH-000E0, SDSP82400TAN-000E0
- Spec source
- Maker's datasheet
Specifications from the maker’s own datasheet. A dash or a missing row means the maker does not publish that figure for this capacity.
Does it fit a PS5?
Yes. It meets Sony's requirements: PCIe Gen4 or faster on four lanes, M.2, and at least 5,500 MB/s. Sony recommends adding a thin heatsink, which the PS5 slot has room for. Every drive that fits.
Quality score
How we score →Scored for a gaming PC from what the maker publishes: read speed against the level games are built around, capacity (under 1TB loses points), cache type, endurance per terabyte and warranty. Speed above the floor adds almost nothing.
Value weighs the score against the price, compared with other 4TB NVMe SSDs: this drive costs $208.75/TB against a typical $163.98/TB. At a typical price, value equals the score. Cheaper raises it and dearer lowers it, but price counts for less than quality.
A factor we hold no value for scores zero rather than being skipped, so a drive we know little about never outranks a fully documented one. A low score with low confidence means undocumented, not bad. This is a specification index, not a benchmark, and it only compares NVMe SSDs with each other.
See every capacity of the WD_BLACK SN8100 on one page, or compare it with every other drive on the NVMe SSDs table.
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