[Function]: Pcie 1X to 7 USB adapter cards, 1 interface can be expanded to 7USB 3.0 interfaces to to the graphics card, effectively solving the problem of insufficient PCIE slots on the motherboard. This is a great value for everyone who needs to install multiple GPU cards on their mining rigs. [ aluminum heat sink]: The size aluminum alloy heat sink can effectively dissipate the excess heat of the PCI- expansion card, so the adapter card is always in a normal temperature state, and the work is more stable and efficient. [System Support]: PCIE separation card is with Windows 7/8/10/11, LINUX. Bus interface Pcie X1 ( with PCI-E X1, X4, X8, X16/graphics interface). [Direct supply]: This PCI-E adapter expansion card adopts a plug-in design, and does not need an extension cable to directly to the motherboard interface for supply. Make the supply of the main control board free from external interference and have higher stability! [Strong stability]: Reduce the number of adapters and pcie extension cables, one cable is directly connected to the interface, and the gold-plated USB connector can be fixed on the chassis, effectively reducing interface interference and line loss, ensuring data reliability and improving work efficiency. Type name: 1 to 7PCI-E USB3.0 Adapter Card Bus Port: PCI-E 1X Port : 7*USB3.0 Supported OS: for Linux, for Windows XP/7/8/10 Colour:black Material:Metal + Plastic Package Contents: 1 * PCI-E 1 To 7Adapter Card Only 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.