PCIE to M2 Adapter NVMe SSD M2 PCIE X1 Raiser PCI-E PCI Express M Key Connector | eBay
M.2 Interface, Key and Socket explained
Amazon.com: FOSA Adapter Card,Nvme SSD to M.2 Key AE Vertical Installation Network Converter for 2280 Type,Supports 2280 Type Nvme SSDM.2 Key AE 2230 Type Slot on mainboard. : Electronics
Amazon.com: SinLoon PCI E X1 M.2 Adapter M.2(NGFF) M Key SSD to PCI-e X1 Card M.2 NVME to PCI Express Adapter for M.2 SSDs with PCI-E (M-Key) Interface Type : Electronics