Storage Comparison
Capacity 4TB |
Sequential Read 7.3GB/s |
Sequential Write 6.6GB/s |
Form Factor M.2-2280 |
Interface PCIe |
Protocol NVMe |
Controller Black G2 |
NAND 3D TLC (112L) |
Price $680 |
SN850X7,300MB/sCapacity 4TB |
Sequential Read 7.3GB/s |
Sequential Write 6.6GB/s |
Rand Read IOPS 1,200K IOPS |
Rand Write IOPS 1,000K IOPS |
SLC Cache 1200GB |
Form Factor M.2-2280 |
M.2 Size 2280 |
M.2 Key M |
M.2 Type S3 |
Interface PCIe 4.0 x4 |
Protocol NVMe 1.4 |
Designer WD |
Model Black G2 |
Part Number 20-82-10035-B2 |
Foundry TSMC |
Process Node 16nm |
Cores 5 |
DRAM Size 2GB |
DRAM Type DDR4 |
DRAM Bus Width 16-bit |
Speed 2666MT/s |
Manufacturer Kioxia |
Codename BiCS5 |
Process Node 19nm |
Type 3D TLC (112L) |
Layers 112L |
Die Size 131mm² |
Die Capacity 1024Gbit |
Die Bit Density 7.8Gbit/mm² |
NAND Chip Count 2 |
NAND Die Count 32 |
NAND Dies/Chip 16 |
SLC Cache 1200GB |
Write Endurance 2,400TBW |
MTBF 1.75M hours |
Burst Power 6.8W |
Avg Power 4.1W |
Idle Power 11mW |
Max Op Temp 70°C |
Min Non-Op Temp -55°C |
Max Non-Op Temp 85°C |
Height 22mm (0.87")Width 80mm (3.15")Depth 2.4mm (0.09") |
Weight 7.5g |
Manufacturer WD |
Model SN850X |
Description 4TB M.2-2280 |
Part Number WDS400T2X0E |
Release Date May 9, 2022 |
Price $680 |
Warranty 5 years |