Supports PCIe Gen4 and PCIe Gen3 M.2 NGFF 80mm, 60mm, 42mm SSD Supports PCIe 1.0 ,PCIe 2.0,PCIe 3.0, and PCIe 4.0 motherboard Note: this adapter is only for 'M' key M.2 PCIe SSD such as Samsung XP941 SSD. Not compatible with a 'B' key M.2 PCIe x2 SSD or 'B' key M.2 SATA SSD. Fast and hassle-free setup with native OS support / Includes full-profile bracket and low-profile bracket for installation in SFF computers