Welcome to the store! 1. PCIE X16 Expansion Card: Dual-sided 2NVME design (front and back). The front and back M.2 slots can connect to SSDs via PCIE X6 with five NVME specifications, PCIE cards, NVME SATA expansion cards, and M.2 NVME SFF8639 cards. 2. 6 Ports: With PCIE BGA, a shared card with four ports can be converted into a six-port shared card, delivering excellent performance. 3. Strong Compatibility: The riser expansion card supports PCIE 4.0 and is backward compatible with PCIE 3.0, offering robust compatibility. 4. Stable Operation: The expansion card utilizes sophisticated production technology for stable operation, plug-and-play ease of use. 5. Premium Material: Made of PCB, it is strong, durable, and resistant to damage and wear. Item Type: PCIE X16 Expansion Card Material: PCB Input Ports: PCIE X16 M.2 NVMEx2 Speed: PCIE4.0, backward compatible with 3.0 1 x PCIE X16 Expansion Card 1 x Screwdriver 2 x Screw 2 x Nut Your 100% satisfaction is our top priority. We are committed to providing you with the best service. If you encounter any issues upon receiving the product, such as damage or incorrect quantity, please contact us immediately, and we will offer the best solution!