GetUSCart- NGFF M.2 Mkey NVME SSD to PCI E 4X Adapter Extender Riser Card for Samsung , PLEXTOR M6E ,M8PR , Intel 600P , etc , Support PCI E Gen3 Standard and Gen1 ,Gen2 Compatible
NFHK NGFF M-key NVME AHCI SSD to PCI-E 3.0 16x x4 Adapter for XP941 SM951 PM951 A110 m6e 960 EVO SSD : Amazon.it: Informatica
Plextor M6e Black Edition 256GB PCIe SSD Review
Plextor Announces M6e Black Edition PCI-Express SSD | TechPowerUp