AMPCOM M.2 NVMe SSD Express Card M Key to PCIE 4.0 X4 Adapter External SSD Support 230 2280 Size M.2 FULL SPEED|Add On Cards| - AliExpress
The Samsung 980 PRO PCIe 4.0 SSD Review: A Spirit of Hope
Samsung SSD 980 EVO PRO 500GB, M.2 PCIe Gen 4.0 x4, NVMe 1.3c Digital Storage
Amazon.com: Inland Performance 1TB Gen 4.0 SSD PCIe NVMe 4 x4 TCL M.2 2280 3D NAND Internal Solid State Drive with Heatsink, R/W Speed up to 5000MB/s and 4300MB/s, 1700 TBW, Backwards