1) Multi-interface: 4PIN, SATA and Graphic card 6PIN interface, three interface optional. The top of solution for setting up Ethereum mining rigs (or any other GPU-mined altcoin), whether small open rigs or rack based miners, and securing your investment.2) LED indicator and fuse are used on the board: Indicates the connection status between your devices.3) 60cm USB 3.0 riser cable enabling flexibility in the placement of your PCI-E devices.4) No drivers needed.5) PCI-E 1x to 16x powered riser adapter card with multi-layer shielded wire will not weaken the signal within 3 meters.USB Type: Standard: ComputerPackage: Yesconnector: Usb 3.0Cable Type: USB: Personal ComputerBoard dimensions: 13cm x 3cm x 1.2cmColour: BlackMaterial: PC+metalPackage Contents:12 x PCI-E 16X riser board12 x PCI-E 1X adapter card12 x 60cm USB 3.0 riser cableOnly the above package content, other products are not included.Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.