Western Digital PC SN740 M.2 256 GB PCI Express 4.0 NVMe After the tests

Certification: HLK, FCC, UL, TUV, KCC, BSMI, VCCI | M.2 SSD size: 2280 (22 x 80 mm) | Features: New SSD pulled out of a notebook during the upgrade process | Width: 22 mm | Interface: PCI Express 4.0 | Random read (4KB): 460000 IOPS | SSD form factor: M.2 | Hardware encryption: Yes | NVMe version: 1.4b | Random write (4KB): 800000 IOPS | Height: 2.38 mm | SSD capacity: 256 GB | Write speed: 4000 MB/s | Operating temperature (T-T): 0 - 85 °C | Depth: 80 mm | NVMe: Yes | Storage temperature (T-T): -40 - 85 °C | Read speed: 5000 MB/s | Weight: 5.7 g | PCI Express CEM revision: 4.0 | Mean time between failures (MTBF): 1750000 h | Component for: PC/Laptop | TBW rating: 300