In response to the SuperSpeed USB 3.0 revolution that leads to a significant change in the characteristics of the traditional external I/O communication devices, MUKii released the 2-Port SuperSpeed USB 3.0 PCIe adapter. This USB3.0 PCIe adapter complies with PCI Express Base Specification Revision 2.0. The external USB 3.0 device can deliver data transfer rates up to 5 Gbps, 10X faster than USB 2.0. It is also backward compatible with the existing USB devices. Each USB port provides up to 900 mA power output, enabling you to transfer data more safely and charge your electronic devices in less time. Using MUKii's 2-port SuperSpeed USB 3.0 PCIe adapter is the easiest and most convenient way for you to upgrade your desktop PC to USB 3.0.