2.5" SSD 4.0TB Samsung SSD 870 EVO, SATAIII, Sequential Reads: 560 MB/s, Sequential Writes: 530 MB/s, Max Random 4k: Read: 98,000 IOPS / Write: 88,000 IOPS, Thickness - 7mm, 4GB LPDDR4 Cache, Samsung MKX controller, V-NAND 3bit MLC