M.2 NVMe PCIe x4 Low Profile Adapter with 110 Length Support M.2 NVMe PCIe x4 Low Profile Adapter with 110 Length Support. Ultra-Low Profile height to fit into 1U Rack Mount Design for Low Profile Chassis with no Bracket needed for PCIe slot Support Extra Long M.2 NVMe 110mm: 80: 60: 42: 30 Fast PCI Express v4.0/v3.0 Specs to NVMe v4.0 via PCIe x4: x8: or x16 slot Full-Length heat sink and heat management for NVMe module Support Booting with Latest UEFI System Boards and OS