Lenovo 1920gb 64-layer Tlc Pcie Gen3.1 X4 Nvme U.2 8639 2.5 Inch Small Form Factor Sff 64 Layer Bics3 3d Triple Level Cell Nand Reads 2660mib/s Writes 1230mib/s Solid State Drive Ssd ( 1.92tb ) - Western Digital Wd Ultrastar Dc Sn630 Based Vri Model Pci-e