Full Speed M.2 NVMe SSD to PCIe Adapter with Heatsink
Sonnet M.2 2x4 Low-profile PCIe Card – Sonnet Online Store
Amazon.com: AMPCOM M.2 M Key Nvme SSD to PCI-e 4.0 Adapter, PCI Express 4.0 X16 Card with Aluminum Case, Supports Windows 7/8/ 10, Supports 2280 : Electronics
StarTech.com M.2 to U.2 Adapter - M.2 Drive to U.2 Adapter for M.2 PCIe SSD - U2M2E125 - Duplicators - CDW.com
Amazon.com: Sedna PCI Express (PCIe) SATA III (6G) SSD Adapter with 1 SATA III Port (with Built in Power Circuit, no Need SATA Power Connector, Best for Mac), SSD not Included :
Quad NVMe PCIe Adapter, RIITOP 4 Ports M.2 NVMe SSD to PCI-e 4.0/3.0 x
OWC 2.0TB Accelsior 1M2 NVMe PCIe SSD at MacSales.com
Cryo-PC Full Speed NVMe SSD PCIE PCI-Express 3.0 X16 to U.2 Adapter Converter Card Module New - NWCA Inc.