Capacity : 1TB + built-in SmartECC and SmartRefresh for state of the art data retention and error correction ensures continued reliable data transfer\n\nSpeed Technology : SATA III 6Gb/s interface and built in with 3D NAND flash, the S20 achieves exceptional transfer speeds of up to 560MB/s read and 500MB/s write. Easy upgrade for speeding up computer performance\n\nForm Factor : The 2.5" form factor is a perfect fit for a wider array of systems. Ideal for PCs, laptops, and other portable computing devices\n\nOperating Voltage : 0.9V~3.6V