Achieved with VL800 USB3.0 Host Controller from VIA-Labs, USB3.0 PCI Express Card allow add 2x Rear USB3.0 Ports and 1x Internal USB3.0 20PIN Connector for your Computer Easily via PCI Express Slot. Offer Transfer Rates Up To 5Gbps,10x Faster of USB2.0 and Backward Compatible with USB2.0,1.1 or 1.0. 4PIN IDE/ATA Power Connector allow to Power the Card via Power Supply of Computer and offer 5V 900mA Power for each Port.