What this PCI-E riser card can offer you is that it can effectively solve the problem of insufficient host interface. This PCI-E riser card is characterized by 8-ports design, which enables it to achieve strong anti-interference ability and effectively ensure the stability of PCI-E high-speed signal transmission, data integrity and impedance matching. It is constructed of PCB material. The length of the product is 12cm, the width is 8.8cm, the height is 1.85cm. It is compatible for Windows XP, 7, 8, 10, 11. Item Name: Extender Card Material: PCB Features: Solid, Compact, Sturdy Expansion Card Main Control: VL805+NEC20210 Interface: 6 x USB3.2 Type-A Ports, 2 x USB3.2 Type-C Ports Interface Rate: 5Gbps Bus PCI-Ex1 (Compatible with x4 x8 x16) Support Driver: Windows XP, Win7, Win10, Win11 Size Details: 12cm x 8.8cm x 1.85cm/4.72" x 3.46" x 0.73" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Extender Card 1 x Screw