Internal ssd solid state drive series sandisk x400 capacity 256 gb form factor 25 inch height 7 mm design internal memory type tlc bus sata iii sata 600 bus speed 6 read speed 540 mbs write speed 520 mbs mtbf 1 750 000 hours shock resistant up to 1 500 g vibration resistant up to 5 g features device sleep weight 374 g operating temperature 0 70 c encryption aes 256 bit width 6985 mm length 1005 mm max schreibvolumen tbw