WESTERN DIGITAL 7.68TB 64-LAYER TLC PCIE GEN3.1 X4 NVME U.2 SFF-8639 2.5 INCH SMALL FORM FACTOR SFF ULTRASTAR DC SN630 SERIES VERY READ INTENSIVE VRI MODEL 64 LAYER BICS3 3D TRIPLE LEVEL CELL NAND READS 2520MIB/S WRITES 1240MIB/S SOLID STATE DRIVE SSD ( 7