Support M.2 (NGFF) PCIe based (NVMe or AHCI) SSD to PCIe x4 slot Support M.2 interface with M key, do not support M+B key Support different length M.2 (NGFF) card, 22x42mm, 22x60mm or 22x80mm Adapter supports PCI Express v3.0 Specs and compatible with v2.0 / v1.0 Supports system boards with PCIe x4, x8, x16 slots Uses minimum power from PCIe 3.3V for better power management Low Profile Bracket included