The samsung 850 pro ssd redefines storage with the world39s first drive based on 3d vnand flash offering exceptional readwrite performance reliability and power management efficiency the 850 pro delivers up to 2x the speed density and endurance of conventional flash samsung39s 850 pro the world39s first 32 layer 3d v nand provides up to 100k iops random read speed and 470 mbs sequential write speed and the option of enabling samsung rapid mode which can kick up to even higher speeds with u