What this PCI-E riser card can offer you is that it can effectively solve the problem of insufficient host interface. Riser card helps effectively reduce interface interference and cable loss for data reliability and work efficiency because you can fix it on the chassis without any extension cable. It is constructed of PCB material. The length of this product is 6.8cm and width is 6.5cm. It supports for Windows XP 32/64, for Windows 7 32/64, for Windows 8, for Windows 8.1, for Windows 10. Item Name: Riser Card Material: PCB Color: Black Bus Mode: PCI-E X1 Compatible Slot: PCI-E X1/X4/X8/X16 USB Interface: 2 USB3.0 Ports Transfer Rate: USB 3.0, 5Gb/s Supported Operating Systems: for Windows XP 32/64, for Windows 7 32/64, for Windows 8, for Windows 8.1, for Windows 10 Features: High Speed, Universal, Plug And Play Size Details: L: 6.8cm/2.68" (Approx.) W: 6.5cm/2.56" (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 Riser Card