M.2 NVME to PCIe 3.0 x4 Adapter with Aluminum Heatsink Solution
NVMe M.2 SSD to PCIe X16/X8/X4 Card - Sabrent
1TB BLADE PCIe 2.0 x4 SSUAX SSD + HEATSINK - Apple Mac Pro A1481 Late 2013 | eBay
NVMe M.2 SSD to PCIe X16/X8/X4 Card - Sabrent
Amazon.com: GLOTRENDS Dual M.2 X4 PCIe Adapter for One M.2 PCIe SSD and One M.2 SATA SSD, Support OS Booting from M.2 PCIe SSD or M.2 SATA SSD, Including 2 x M.2
StarTech.com U.2 to PCIe Adapter for 2.5" U.2 NVMe SSD - SFF-8639 - x4 PCIe - PEX4SFF8639 - -