Specification: Capacity 256GB Form Factor M.2 2280 NAND Flash 3D TLC Dimensions (L x W x H) 80 x 22 x 6.1mm / 3.15 x 0.87 x 0.24inch Weight 11g / 0.38oz Interface PCIe Gen3x4 Performance (Max) Read 3500MB/s , Write 3000MB/s Maximum 4K random read/write IOPS : up to 390K/380K * Performance may vary based on SSD capacity, host hardware and software, operating system, and other system variables. Operating temperature 0°C - 70°C Storage temperature -40°C - 85°C Shock resistance 1500G/0.5ms MTBF 2,000,000 hours