Welcome to our store! 4 Ports: Expand front and rear 4 ports simultaneously. PCIE 4.0 X16 full speed signal, PCIE 4.0 RAID 0 mode, read speed up to 14000+Mb/S. Supports: Compatible with 2242/2260/2280/22110 specifications. Supports M.2 M KEY NVME SSD. Supports M.2 PCIe expansion cards and devices. LED Indicator: Soft LED indicator light. Connect disk power, green light on; read and write, green flashing. Splitter or RAID Function: The motherboard supports PCIE splitting or PCIE RAID functions, providing excellent performance. Premium Material: Made of PCB, it is strong, durable, not easy to damage, and not easy to wear. Item Type: PCIE X16 to M.2 M KEY Expansion Card Material: PCB Supported Hard Drives: M.2 NVME SSDs, M.2 PCIE devices Transmission Speed: 4x32Gbps 1 x PCIE X16 to M.2 M KEY Expansion Card 1 x Shielding 1 x Screwdriver 5 x Screw 4 x Nut If you receive your item and find any product issues, such as damage or incorrect quantity, please contact us immediately. We will do our best to provide you with satisfactory customer service.