Samsung ® SSD Storage 870 EVO 250GB 2.5Specification Details Brand Samsung Model 870 EVO (MZ77E250B) Capacity 250 GB Form Factor 2. 5 7 mm Interface Protocol SATA III (6 Gbps) AHCI Controller Samsung MKX Metis DRAM Cache 512 MB LPDDR4 Flash Type 128 layer TLC VNAND Sequential R W Speed Up to 560 MB s read 530 MB s write Random Performance ~98K IOPS read ~88K IOPS write TurboWrite Buffer 12 GB Endurance (TBW) 150 TBW Warranty 5 years Power Consumption ~0. 03 W idle ~2. 2 W average ~3. 5 W