Features: brand new and high quality With Fast and efficient USB 3.2 Ports, support up to 20 Gbps transmission speed, Transfer videos, photos, files, etc. between the USB device and the computer to achieve higher efficiency.Note: The actual transmission speed is limited by the number of connected devices. Add 5 USB 3.2 ports to the PC via pcie slot.Enough for you to connect all your USB devices, USB mouse, keyboards, portable hard drives, printers, game controller, etc This PCIE expansion card for PCIE 3.0 PCIE 2.0 and PCIE 1.0 motherboards. Operating System supports for Windows 7, 8, 10, MacOS, Linux. Note:Win 10/8 MacOS 10.9 Linux does not need any driver,for Windows 7 requires installing a driver and you can find the driver on the CD provided by us. Easy to install , safe and stable to use. Explosion-proof capacitors are made of polymer dielectric materials,Each interface is equipped with a voltage-regulating capacitor. Can provide good temperature control during operation and ensure stable power supply for each interface. Specifications: Host Interface: PCI for Express (PCI-E 3.0/2.0/1.0) Data Transfer Rate: USB 3.2 up to 10Gbps Output: 5V/3A MAX (each USB port) Extend Ports: 5 USB Type A Size: approx 117x80mm/4.6x3.15in Note: 1.Make sure PCs mother board have empty PCIE slot for PCIE USB cards 2.The height of the Expansion card is 4.6 inches. Please make sure that your for case can be installed normally before purchasing. Some ultra-thin ITX cases may not be installed. 3.Please make sure the power has been disconnected before installation 4.Do not use in a humid environment, otherwise it will affect the connection of the device. 5.Please allow 0-1cm error due to the manual measurment Package includes: 1x USB 3.2 PCI-E 5 Ports Expansion Card 1x CD Driver 1 x User's Manual