Zalman SSD0128S1. Solid-state drive capacity: 128 GB, Size: 63.5 mm (2.5 "), Solid-state drive interfaces: Serial ATA II. Read speed: 260 MB/s, Write speed: 210 MB/s, Data transfer rate: 3 Gbit/s. Operating voltage: 5 V, Power consumption: 300 mA. Mean time between failures (MTBF): 1000000 h. Windows operating systems supported: Windows 7 Home Premium