Gen 4 speeds, though I've only ever used it as Gen 3.
Western Digital Black SN850 2TB M.2 NVMe Internal SSD (WDS200T1X0E) PCIe 4.0 WD
Western Digital Black SN850 NVMe 1TB Internal SSD (WDS100T1X0E-00AFY0)
Western Digital Black SN850X | 4TB M.2 2280 NVMe Solid State Drive
WESTERN DIGITAL Hard Drives Brand Model Black SSD 2TB SN770 NvMe WDBBDL0020BNC-WRSN
Western Digital WD_BLACK SN770 2TB NVME SSD (WDS200T3X0E) - Fully Tested
Western Digital WD_BLACK SN770 1TB
