Micron SSD P400E 50GB. Solid-state drive capacity: 50 GB, Size: 63.5 mm (2.5 "), Solid-state drive interfaces: Serial ATA III. Read speed: 350 MB/s, Write speed: 100 MB/s, Random write (4KB): 50000 IOPS. Operating voltage: 5 V. Mean time between failures (MTBF): 1200000 h. Operating temperature range (T-T): 0 - 70 °C, Operating shock: 1500 G, Operating vibration: 3.1 G