1. 7 USB sockets to expand the number of connected devices 2. Plug and play, no driver 3. Built in heat sink Model: EUX1070 Bus port: PCI-E 1x Number of ports: 7 * USB3 0 Main chip: ASM1187E Supported operating : for , for Linux, for Windows XP / 7 / 8 / 10 Product size: 122 x 120 x 70mm Product weight: 80g Different batches, there may be differences in appearance and printing, it has no effect on the product Model Number: Riser Card color:Black :plastic+metal Package Contents: 1 x PCIE Riser Card Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.