Samsung 990 PRO 2TB NVMe M. 2 2280 PCIe 4.0 SSD. For sale is a genuine Samsung 990 PRO 2TB NVMe solid-state drive. It remained installed beneath the motherboard’s M. 2 thermal pad and heatsink until it was removed for this sale. Interface: PCIe 4.0 x4. Protocol: NVMe 2.0. Sequential read speed: up to 7,450 MB/s. Sequential write speed: up to 6,900 MB/s. 2GB LPDDR4 DRAM cache. Samsung rates the 2TB 990 PRO for up to 7,450 MB/s sequential reads, 6,900 MB/s sequential writes, and 1,200 TBW endurance. Actual performance depends on the computer, motherboard, firmware, cooling, and system configuration.