Internal ssd solid state drive series plextor m6e black edition capacity 256 gb height 224 mm dimension 181 x 121 mm design internal memory type mlc bus pcie buffer 1 024 mb ram type ddr3 read speed 770 mbs write speed 625 mbs mtbf 2 400 000 hours shock resistant up to 1 500 g vibration resistant up to 16 g features trim support smart ncq ahci controller marvell 88ss9183 weight 180 g operating temperature 0 70 c encryption aes 2