Sonnet M.2 2x4 Low-profile PCIe Card – Sonnet Online Store
Dual M.2 PCIe NVMe Adapter Without PCIe Splitter Function (PCIe Bifurcation Motherboard is Required), Support M.2 PCIe 4.0/3.0 SSD Soft RAID Setup in Windows/Linux
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
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
PCI-E X8 2- Port NVMe M.2 M-Key Extended Card - NWCA Inc.
Amazon.com: AMPCOM M.2 NVME SSD to PCIe 4.0 Adapter Card, 64Gbps SSD PCIe4.0 X4 Adapter for Desktop PC, PCI-E GEN4 Full Speed : Electronics
Startech .com Quad M.2 PCIe Adapter Card, x16 Quad NVMe or AHCI M.2 SSD to PCI Express 4.0, Up to 7.8GBps/Drive, For 2242/2260/2280/2... QUAD-M2-PCIE-CARD-B - Corporate Armor
Amazon.com: Dual M.2 SSD NVME (m Key) or SATA (b Key) to PCI-e 3.0 x 4 Host Controller Expansion Card with Low Profile Bracket and Heatsink for Desktop : Electronics
Amazon.com: 2 Port M.2 SSD to PCI-e x1 adapter B or B+M key (SI-PEX40115) : Everything Else