4TB Solid State Drive (SSD) design, Form factor 2.5", SATA 6Gb / s interface, Read 560MB / s, Write 530MB / s SLC-Cached (160MB / s QLC), IOPS 4K read / write 98k / 88k, Memory modules 3D-NAND QLC, Samsung, 92 layers (V-NAND), TBW 1.44PB, Reliability forecast 1.5 million hours (MTBF) Controller Samsung MKX, 8 channels, Cache 4GB (LPDDR4), SLC cache (78GB), AHCI protocol, Data protection functions 256bit AES, Power consumption 5.5W (maximum), 3.2W (operation), 0.035W (idle), not specified (sleep mode), Dimensions 100x69.85x6.8mm