Kingston SSDNow UV500 480GB M.2 SSD SUV500M8/480G, Sequential read/write up to 520/500MB/s, Maximum 4K read/write up to 79,000/35,000 IOPS, 480GB, 1 million hour MTBF, Total Bytes Written (TBW) 200TBW, Storage temperature-40°C~85°C, Operating temperature 0°C~70°C. Kingston’s UV500 SSD dramatically improves your system’s responsiveness with incredible boot, loading, and transfer times compared to mechanical hard drives. It uses a Marvell 88SS1074 controller and 3D NAND Flash.