TS1TMTE400S TRANSCEND SSD 400S M.2 1TB PCIE NVME Appearance Dimensions Single-sided 42 mm x 22 mm x 2.23 mm (1.65″ x 0.87″ x 0.09″) Weight 5 g (0.18 oz) Type M.2 2242 Interface Bus Interface NVMe PCIe Gen3 x4 Storage Flash Type 3D NAND flash Capacity 1 TB Operating Environment Operating Temperature 0°C (32°F) ~ 70°C (158°F) Operating Voltage 3.3V±5% Performance Sequential Read/Write (CrystalDiskMark) 1 TB up to 2,000/1,700 MB/s 4K Random Read/Write (IOmeter) 1 TB up to 102,000/275,000 IOPS Terabytes Written (TBW) 1 TB 400 TBW Mean Time Between Failures (MTBF) 2,000,000 hour(s) Drive Writes Per Day (DWPD) 0.21 (5 yrs) Note Speed may vary due to host hardware, software, usage, and storage capacity. The workload used to rate DWPD may be different from your actual workload, which may vary due to host hardware, software, usage, and storage capacity. Terabytes Written (TBW) expresses the endurance under the highest capacity. Some motherboards only provide PCIe x2 connections for the M.2 slot, creating a bottleneck on even the fastest drives.