[USB3.0 Transmission Port]--This PCI-E adapter will add four USB 3.0 ports on desktop computer by PCI Express(1X) slot. The 4X super speed USB 3.0 ports will provide 5Gbps max data(totally) transfer speed for video, audio, photos, or files.[Separately Powered IC] Build in 8A Self-Powered Technology,which means do not need to plug any additional power cable on board (only PCIe slot) and get each port 2A (8A in total) max power supply for high power-consuming data device like Hard drive disc. Enjoy super easy installation with Plug & Play.[Integrated Power Supply Unit]--Based on high performance chipset with more technology.4X added power module provide 4X 5V/2A current ensure adequate power supply for connected USB device.4X electric circuit protector and voltage stable capacitance will protect user’s data safety better.[Universal Compatibility System]--1. Plug and Play on Windows 10,8.1,8(32/64bit) and Windows Server 2012,2012R2,2016,2019. 2. Need to Install Driver on Windows XP, Vista,7(32/64bit) and Windows Server 2003,2003R2,2008,2008R2(32/64bit), NOT for MAC OS.[Installation Tips]--1. Please install driver for USB card on PCs.2. Not works on slim size PCs, No low-profile bracket inside.3. Make sure PCs Mother Board have empty PCIe slot for PCIe USB card. 4. Make sure USB device is USB 3.0 or can’t get USB 3.0 speed.