VisionTek Products Two Port USB 3.0 x1 PCIe Internal Card for PCs and Servers - 900869 Adds two Super Speed USB 3.0 ports each with up to 5GB/s (600MB/s) data rate - up to 10x faster than USB 2.0 Fully powered by the PCIe bus, does not require molex or sata power cable. Power USB devices or charge them without needing an AC adapter, each port provides 900mA of power. USB 2.0/1.1 backward compatible, works with legacy USB devices. Hot swap capable, add/detach devices without rebooting.