SODIAL(R) USB 3.0 4-Port PCI Express PCI-E Card Super Speed 5Gbps with 4 Pin Power Adapter 100% brand new and high quality 4-port USB3.0 interface can connect four USB devices at the same time USB3.0 interface transfer rate up to 5Gbps, also compatible with USB2.0 and USB 1.1 USB3.0 interface with the senior pin interface Support USB hot-swappable, plug and play