PCE-U3P4-SPC allow users add 4 USB 3.0 ports on desktop computers to light up more USB device such as mice,keyboards,hubs,flashdrive,harddrive etc. It will provide 5Gbps USB 3.0 total speed for video, audio or large data files transfer. Builds in LTERIVER Smart Power Control Technology make sure connected high power consumption device always works in high performance.LTERIVER Smart Power Control Technology Smart Power Control Technology is a new solution to add enough power supply on USB cards. The old version USB host controller card need to install additional power cable or cannot light up device. LTERIVER designed 4X Voltage Transformer to pick up power from mother board, convert 12V/3.4A power to USB 5V/8A power and allocate 5V/2A to each USB 3.0 port. Meanwhile, the 4X fuse and 4X solid capacitor protect connected USB 3.0 device from overload, over-current, overheat. Make sure all connected USB device running in high performance. Keep users data safe and complete.System Compatibility:NOT for MAC OS and Linux system.Driver free on 8.0,8.1,10(32/64bit) system.Need to install driver on Windows Server, XP,Vista,7(32/64bit) System.Windows Server: 2003,8008,2008R2,2012,2016 and later version.Package List:1X PCE-U3P4-SPC1X User Manual1X Mini CD1X Mount Screw