4 Ports PCI-E to USB 3.0 HUB PCI Express Expansion Card Adapter 5Gbps for Motherboard With 9.5 mm Length low profile bracket and standard bracket. You need to install the NEC USB 3.0 driver for your computer first. Interface: Interface: Single-Lane (x1) PCI Express Gen2 Mode Port: 4 external USB 3.0 ports Speed: Data Transfer rate of 1.5 /12/480/5000 Mbps. Low Speed ( 1.5M bps), Full Speed (12Mbps), High Speed (480Mbps), Super Speed (5Gpbs) Power Input: SATA or IDE Power Connector Power output: +/-5V / 900mA (each port) Compatible: USB 1.1 / 2.0 / 3.0KEY _TAB Operating Systems: Windows7/8/10(32/64bit)