Amazon.com: A ADWITS PCI Express 3.0 x16 to PCIe-Based NVMe and AHCI SSD Adapter Card with Heat Sink, Fits M.2 (NGFF) Form Factor with Key M in Size 2230/2242/2260/2280 : Electronics
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PCIe 3.0 X16 PLX8747 to 4 Port M.2 NVMe SSD Adapter Expansion Card Quad Mkey Nvme to Pci-E Converter for PC 32G/bps win10 linux - AliExpress
NeweggBusiness - Silverstone ECM23 M.2 NVMe SSD to PCIe 3.0 x16 adapter with heatsink
4 Port PCIe 3.0 x16 to U.2(SFF-8643) NVMe SSD Adapter