Features: 1.4 Port: The front and back 4 port are expanded at the same time. PCIE 4.0 X16 full speed signal, PCIE 4.0 RAID 0 mode, read rate up to 14000+Mb/S. 2.Supports: Compatible with 2242/2260/2280/22110 s. Supports M.2 M KEY NVME SSD. Supports M.2 PCIe expansion cards and devices. 3.LED Indicator: LED soft light indicator, plug in the disk power, green light on, read and write green flashing. 4.Splitter or RAID Function: The mainboard supports PCIE split or PCIE RAID functions, providing excellent performance. 5.Premium Materials: Made of PCB, it is strong, durable, not easy to damage, not easy to wear. specification:Item Type: PCIE X16 to M.2 M KEY Expansion Card Material: PCB Hard Disks Supported: M.2 NVME SSDS M.2 PCIE Devices Transmission Speed :4x32Gbps PackageList:1 x PCIEX16toM.2MKEYExpansionCard 1 x Baffle 1 x Screwdriver 5 x Screw 4 x Nut