Internal ssd solid state drive capacity 256 gb form factor m2 design internal memory type tlc bus sata iii sata 600 bus speed 6 buffer 512 mb ram type ddr3 read speed 540 mbs write speed 490 mbs features device sleep ahci ncq trim support smart garbage collection controller marvell 88ss1074 width 22 mm length 80 mm production process 15 nm max schreibvolumen tbw 160 4k random read iops 95 000 4k random write iops 83 000 manuf