Add SuperSpeed USB 3.0 connectivity to your desktop computer with this I/O Crest SY-PEX20081 2-Port SuperSpeed USB 3.0 PCI Express x1 Controller Card! The SY-PEX20081 features the Etron EJ168A chipset and includes two external SuperSpeed USB 3.0 ports. Plus, it's also backwards compatible with USB 2.0 and 1.1 devices. Simply install this card into an available PCI Express x1 slot and you're ready to transfer data at up to 5 Gbps. Easily add SuperSpeed USB 3.0 to your PC with the I/O Crest SY-PEX20081 2-Port SuperSpeed USB 3.0 PCI Express x1 Controller Card!