Vantec M.2 NVMe SSD PCIe x4 Adapter - Micro Center
Sonnet M.2 4x4 PCIe Card for SSDs - Sonnet
Amazon.com: Dual M.2 PCIE Adapter for SATA or PCIE NVMe SSD with Advanced Heat Sink Solution,M.2 SSD NVME (m Key) and SATA (b Key) 22110 2280 2260 2242 2230 to PCI-e x
NVMe PCIe Adapter, RIITOP M.2 PCIe (M Key) NVMe SSD to PCIe x4 Converter Card Support 2230, 2242, 2260 2280 mm M.2 NVMe SSD - Newegg.com
M.2 PCie 4.0/3.0 Adapter with Heatsink for M.2 PCIe SSD - GLOTRENDS
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
Adapter, M.2 to U.2 - M.2 PCIe NVMe SSDs - Drive Adapters and Drive Converters