Performance Crystal Disk Mark: 128GB Read/Write: up to 550/460 MB/s 256GB Read/Write: up to 550/470 MB/s 512GB Read/Write: up to 550/480 MB/s 1TB Read/Write: up to 550/500 MB/s[3] Weight :10g Dimensions :80(L) x 22(W) x 3.5(H) mm Humidity RH 90% under 40C (operational) Vibration 80Hz~2,000Hz/20G Shock :500 G, 2 m/sec MTBF:1,500,000 hours