With the SYBA SD-PEX20133 4-Port USB 3.0 PCI-e x1 USB Controller Card, you can enjoy four external USB 3.0 ports with a blazing fast 5Gbps data transfer rate. Equipped with the VLI VL80x USB 3.0 host controller IC, this card is compliant with Intel's xHCI specification and PCI Express Base Specification 2.0. Its 1-Lane (x1) interface supports data transfer rates of up to 5Gbps, and it is also backwards compatible with PCI-Express 1.0a for speeds up to 2.5Gbps. With an internal HDD power connector, you can provide extra power to the USB ports for even faster transfers. Experience explosive speed and increased efficiency with this small form factor USB controller card. Say goodbye to long transfer times and hello to lightning-fast file and video transfers.