Amazon.com: 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) : Electronics
Xiwai Cable Low Profile PCI-E 3.0 x1 Lane to M.2 NGFF M-Key SSD Nvme AHCI PCI Express Adapter Card Computer Power Cords - Newegg.com
EnLabs PCIe X1 to M.2(NGFF) + SATA 6G (HDD/SSD) with Standard Profile Bracket,ASM1061 Chipset PCI-Express to B Key M.2 SATA SSD 2280 2260 2242 2230 w/ SATA III Port - Newegg.com
Adapter Card PCIe X1 To M.2 Card With Bracket NVMe PCIe M.2 NGFF SSD To PCIe X1 - AliExpress
Delock Products 90349 Delock PCI Express x1 Card for 2 x SATA HDD / SSD