M.2 NVME Disk to Pci-E X1 Expansion Card Desktop PC PCI Express X1 Adapter Card | eBay
PCIe to SATA 3.0 6G SSD Adapter PCI-E PCI Express X1 Controller Expansion Card Riser Add on Card Mining Card - Walmart.com
EnLabs PCIe X1 To MSATA SSD & SATA3.0 Combo Expansion Card, ASM1061 Chipset PCI Express Controller Mini SATA SSD Adapter for PC Desktop w/ Standard Profile Bracket - Newegg.com
hardware - Force renegotiation of PCI Express link speed? x2 card reverts to x1 width - Server Fault
Amazon.com: 2 Port M.2 SSD to PCI-e x1 adapter B or B+M key (SI-PEX40115) : Everything Else
M.2 NVMe SSD TO PCI-E 3.0 X1 adapter M Key interface card 2230 2242 2260 2280 | eBay