[Easy to Expansion] Insert the PCIe expansion card Inside the computer PCIE x1 slot, no additional power supply, it can be easily upgraded to 3x USB C and 2x USB A ports.Solve the problem of fewer USB ports on the host and allow more devices to be connected to the computer system, such as keyboard, mouse, external hard drives, usb printer, scanner, game controller,USB VR, digital camera, etc. [SuperSpeed USB 3.0]Card can theoretically provide data transfer speeds of up to 5Gbps bandwidth,10 times faster than USB 2.0.Transfer files,HD movies and songs to your USB device in just seconds.Note: The actual transfer speed may be limited by the connected devices. [Wide compatibility]Support Windows and Mac OS operating systems,this card is compatible with PCI Express x1 to x16 slots. Compatible with PCI-e 3.0 and 2.0. When installing the usb expansion card , Win 10, Mac OS 10.8.2 above and do not need a driver, and Windows 7/XP systems must install a driver. [Easy to use and safe]Power can be supplied from the PCI express slot. Installation is very simple, plug and play. Each interface of the USB card has independent insurance, with over-current and short-circuit intelligent protection, which can protect your computer equipment. Material: plastic colour: black Package Contents: 1 x PCIe Expansion Card 1 x CD Driver 1 x english Manual 2 x Screws