PCIe SSD 220S Specifications: Appearance Dimensions (Max.)80 mm x 22 mm x 3.58 mm (3.15" x 0.87" x 0.14") Weight (Max.)8 g (0.28 oz) Interface Bus InterfaceNVMe PCIe Gen3 x4 Storage Flash Type3D NAND flash Capacity 256 GB 512 GB 1 TB Operating Environment Operating Temperature0°C (32°F) ~ 70°C (158°F) Operating Voltage3.3V±5% Performance Read Speed (Max.)3,500 MB/s Write Speed (Max.)2,800 MB/s Terabytes Written (Max.)800 TB