Used 256GB Performance 1,600/1,000 MB/sIOPS: 256GB Read/Write: 160K/200K IOPS Max Weight 6g Dimensions 80(L) x 22(W) x 3.8(H) mm RH 90% under 40°C Humidity (operational) ration 80Hz~2,000Hz/20G bck 1,500G/0.5ms BF 1,500,000 hours System Requirements: Operating System Windows 10, Windows 8.1, Windows 8, Windows 7[4] Linux 2.6.33 or later