Internal ssd solid state drive capacity 256 gb form factor 25 inch height 68 mm design internal memory type mlc bus sata iii sata 600 bus speed 6 read speed 540 mbs write speed 340 mbs features device sleep trim support garbage collection wear leveling smart ncq controller transcend ts6510 weight 58 g operating temperature 0 70 c width 6985 mm length 100 mm 4k random read iops 35 000 4k random write iops 70 000 manufacturers