Amazon.com: M.2 NVME SSD M Key to PCIE X8 Adapter Card, PCIE to NVME Dual Drive Expansion Card, 32Gbps SSD PCIE 3.0/4.0 Adapter for Desktop PC, PCI E Full Channel Full Speed(ph45) :
JEYI M.2 NVME SSD to PCIe 4.0 Adapter Card, 64Gbps SSD PCIe 4.0 X4 Expansion Card for Desktop PC , PCI-E GEN4 Full Speed SK4 - AliExpress
What is the difference between PCIe Gen 3 and PCIe Gen 4? - Kingston Technology
JEYI M.2 NVME SSD to PCIe 4.0 Adapter Card, 64Gbps SSD PCIe 4.0 X4 Expansion Card for Desktop PC , PCI-E GEN4 Full Speed SK4 - AliExpress
Amazon.com: M.2 NVME PCIE Adapter with Aluminum Heat Sink, M.2 SSD to PCIe 4.0 X4 Expansion Card Support PCIe X4/X8/X16 Slot. : Electronics