StarTech.com Dual M.2 PCIe 4.0 x8 x16 to Dual NVMe or AHCI SSD (DUAL-M2-PCIE -CARD-B)
Asus HYPER M.2 X16 GEN 4 CARD Hyper M.2 x16 Gen 4 Card (PCIe 4.0/3.0) - Newegg.com
New M.2 NVMe Edge to PCIe x16 Connector PCIe x16 to M.2 NVMe Adapter R43SG eGPU | eBay
Amazon.com: EZDIY-FAB NVME PCIe 4.0 Adapter, M.2 NVME SSD to PCI Express Adapter with Heat Sink, Only Support PCIe x16 Slot,Support M.2 SSD 2230 2242 2260 2280 : Electronics
Quad M.2 PCIe Adapter for NVMe/AHCI SSD - Drive Adapters and Drive Converters | StarTech.com
Asus HYPER M.2 X16 GEN 4 CARD Hyper M.2 x16 Gen 4 Card (PCIe 4.0/3.0) - Newegg.com
Amazon.com: M.2 NGFF NVMe SSD to PCIE 3.0 X16/X8/X4 Adapter with heatsink for 1U/2U Server and Low Profile PC : Electronics
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AliExpress
IOCREST IO-PEX40152 PCIe x16 to Quad M.2 NVMe PEX Switch PCIe Card Review - The Tech Journal