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 (Gold) : Electronics
Amazon.com: NVMe M.2 Adapter PCIe SSD to PCI-e X4 / X8 / X16 Controller Expansion Card, M.2 (NGFF) SSD Pcie Adapter Converter Card with with Aluminum Heat Sink for M.2 (M Key)
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
YOUTHINK PCI‑E 4X to NGFF SSD,NVME M.2 to PCIE3.0 X4 Adapter,NVME M.2 to PCIE3.0 X4 Adapter Fast Speed Fast Heat Dissipation M.2 NVME SSD to PCIE 3.0 - Walmart.com
Amazon.com: ELECTOP NVME PCIe x16 Adapter, M.2 Key-M SSD to PCI 3.0 Express Expansion Card, Support 2230 /2242/2260 /2280 with Heat Sink, Compatible with Windows XP / 7/8 / 10 & MAC OS System : Electronics
Amazon.com: I/O Crest M.2 M-Key SSD PCI-Express 2.0 x4 Adapter or M.2 B-Key SSD to SATA Interface Adapter Card : Electronics
SAMSUNG 990 PRO M.2 2280 2TB PCI-Express Gen 4.0 x4, NVMe 2.0 V7 V-NAND 3bit MLC | eBay
Rivo PCI-E Riser PCIe M.2 PCIe SSD to PCIe Express 3.0 x4 Adapter Card - Supports M2 NGFF PCI-e 3.0, 2.0 or 1.0, NVMe or AHCI, M-Key, 2280, 2260, 2242, 2230 Solid State Drives