Look Measurements (3.94" x 2.75" x 0.28") 100 mm x 69.85 mm x 6.8 inches 45 g (1.59 oz) in weight Keeping Flash Capacity: 500 GB, 1 TB, or 2 TB; Type: QLC NAND Environment of Operation Temperature range for operation: 0°C (32°F) to 70°C (158°F) 5V±5% is the operating voltage. Sequential Performance (CrystalDiskMark) Read/Write Up to 550/500 MB/s for 2 TB From 1 TB to 550/500 MB/s 550/500 MB/s to 500 GB 4K IOmeter Random Read/Write Up to 81,000/80,000 IOPS, 2 TB Up to 57,000/79,000 IOPS, 1 TB, and 500 GB, respectively Written Terabytes (TBW) 500 GB 2 TB 400 TBW 1 TB 200 TBW One hundred TBW MTBF, or mean time between failures Two million hours DWPD (Disk Writes Per Day) 0.19 (3 years) Note: Depending on the host, speed may vary.