Western Digital WD_BLACK SN850X 4TB with Heatsink NVMe PCIe 4.0 x4 M.2 2280 SSD — Ultra-Fast TLC 3D NAND, 7,300 MB/s Read, 6,600 MB/s Write, Advanced Thermal Management, DirectStorage Support, Compatible with Windows 10+ & PS5, 3-Year Warranty, Black