M.2 NVMe SSDs
Western Digital WD Black SN7100 4TB
Why choose it
Choose the 4TB SN7100 for a compatible M.2 2280 PCIe Gen4 slot when you need room for a large game or project library. Its TLC flash design has no onboard DRAM.123 This 4TB model is rated for up to 7,000 MB/s reads and 6,700 MB/s writes. Those are internal-test ceilings; host hardware and usage affect performance.1
The details
Specifications
Core specifications9
| Capacity | 4,000 GB1 |
|---|---|
| PCIe generation | PCIe 4.02 |
| Sequential read speed | 7,000 MB/s (Test method: Manufacturer internal testing; performance varies with host device, usage conditions, drive capacity and other factors. Configuration: Rated maximum for the 4TB WDS400T4X0E-00CJA0 capacity.)1 |
| Endurance | 2,400 TB (Workload: JEDEC client workload JESD219; rated for the 4TB capacity.)3 |
| Sequential write speed | 6,700 MB/s (Test method: Manufacturer internal testing; performance varies with host device, usage conditions, drive capacity and other factors. Configuration: Rated maximum for the 4TB WDS400T4X0E-00CJA0 capacity.)1 |
| Flash cell type | Tlc1 |
| Random read | 900,000 IOPS (Test method: Manufacturer internal testing; performance varies with host device, usage conditions, drive capacity and other factors. Configuration: Rated maximum for the 4TB WDS400T4X0E-00CJA0 capacity.)1 |
| DRAM cache | No3 |
| Warranty | 5 years (Configuration: Five years or the maximum endurance limit of 2400TBW for the 4TB capacity, whichever occurs first; regional warranty details apply.)1 |
Fit and compatibility1
| M.2 form factor | M.2 22802 |
|---|
More specifications2
| Random write | 1,350,000 IOPS (Test method: Manufacturer internal testing; performance varies with host device, usage conditions, drive capacity and other factors. Configuration: Rated maximum for the 4TB WDS400T4X0E-00CJA0 capacity.)1 |
|---|---|
| Drive height | 2.38 mm1 |