1.[4 Ports USB Expansion Card]This UP4000 allow users add 4X USB ports (4-Ports USB-A) on desktop computers by PCI Express(1X) interface. The added-on USB 3.0 ports can provide superspeed 5Gbps max(totally) for audios, photos, and more files data transfer 2.[No External Power Adapter]Users do not need to plug any additional power cable on from power source and get 5V/12A max power supply for high-power consuming device (Device only, NOT support BC 1.2 charging) such as HDD/SSD enclosure, VR sensor etc 3.[Date Safe and Stable]Select high performance Fressco FL1100 USB 3.0 host controller. Builds in more technology: 1. Added-on 4X power module to provide 12 ampere (each port 5V/3A max) current ensure adequate power supply for connected USB device. 2.Designed 4X electric circuit protector, 4X voltage stable capacitance and 4X voltage stable inductance to protect data than ever 4.[Wide Compatible System]This PCIE expansion card compatible with PCIE 4.0 PCIE 3.0 PCIE 2.0 and PCIE 1.0 motherboards, Operating System Supports Windows 7, 8, 10,11,MacOS, Linux. Note:Win 11/10/8 MacOS 10.8.2 Linux does not need any driver,Windows 7 requires installing a driver and you can find the driver on the CD provided by us