Maximum extension, Most USB interfaces - Update your Computer to 7 ports USB3.0-2 Port Type C and 5 ports Type A Improve quality and efficiency - supports transfer rates of up to 5Gbps. Note: The actual transmission speed is limited by the setting of the device connected. Widely compatibility - USB3.0 Backwards compatible with USB 2.0 and 1.1 devices; Comply with PCI-e 3.0 PCIe 2.0 motherboards, Fits PCI Express x1, x4, x8 or x16 socket. Operating System Supports Windows XP/Vista/2008 Server/7/8/10,and Mac 0s (10.8.2 above) . Note: Windows XP,/Vista/7, Server, requires driver installation, Windows 10 and Mac OS 10.8.2 above don’t need drivers. Easy to install - Shut down the PC, unplug the power supply, remove the PC case, push the card in pcie socket and tighten the screws, and Close the PC case cover, turn on the PC and install the driver. Drive links: https://support. frescologic.com/portal/en/kb/articles/usb