M.2 NVMe SSD NGFF TO PCIE 3.0 x16 x8 x4 Adapter M Key Interface Card Full Speed 7437104658609 | eBay
GLOTRENDS M.2 PCIe X1 Adapter with M.2 Screw for M.2 PCIe 4.0/3.0 SSD (NVMe/AHCI Key M), PCIe X1/X4/X8/X16 Lane Installation, but Only PCIe X1 Bandwidth (PA09-X1) Add-On Cards - Newegg.com
StarTech.com Dual M.2 PCIe SSD Adapter Card, x8 / x16 Dual NVMe or AHCI M.2 SSD to PCI Express 4.0, Up to 7.8GBps/Drive, For 2242/2260/2280/22110mm PCIe M-Key M2 SSDs, Bifurcation Required
Amazon.com: M.2 NGFF NVMe SSD to PCIE 3.0 X16/X8/X4 Adapter with heatsink for 1U/2U Server and Low Profile PC : Electronics
Amazon.com: PCIe 3.0 to (2) U.2 SFF-8639 Adapter, X8, for 2.5" U.2 NVMe SSD or 2.5" SATA SSD : Electronics
Amazon.com: MAIWO M.2 NVMe SSD to PCIe 3.0 X16/X8/X4 Adapter Converter Card Support M.2 Hard Drive Speed Up,2230 2242 2260 2280,Compatible with Windows 7/8/10 & Linux : Electronics