Amazon.com: Hilitand M.2 NVME SSD to PCIe 4.0 Adapter Card, 4 Port M.2 NVMe to PCIE x16 Expansion Card for M Key NVMe SSD, 4 x 32Gbps Full‑Speed(ph44) : Electronics
Quad NVMe PCIe Adapter, RIITOP 4 Port M.2 NVMe SSD to PCI-e 4.0/3.0 x16 Card with Fan for 2230/2242/2260/2280 SSD (PCI-e Bifurcation Required) - Newegg.com
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
M.2 NVMe SSD PCIe 4.0 Adapter with Covered Heat Sink - Micro Connectors, Inc.
Amazon.com: Quad M.2 NVME SSD to PCI-E 4.0 X16 Adapter, High Speed 4x32Gbps Soft Raid Card with Individual LED Indicator Support 2230 2242 2260 2280 (ph44) : Electronics