StarTech.com 4 Port PCI Express USB 3.0 Card - 3 External and 1 Internal - Add four USB 3.0 ports - three external and one internal port - to your computer - 4 Port PCIe USB 3.0 Card

Fits standard or small form-factor computers, low-profile bracket included PCIe x1 interface, compliant with PCI Express 2.0 specifications Data transfer rates up to 5 Gbps plus UASP support Expands your computer connectivity with four extra USB 3.0 ports (3 external, 1 internal) Easy to install with native OS support in Windows 8.1, 8, 7, and Linux kernel 2.6.31 or later Built-in optional SATA power connector provides up to 900mA per USB port Backward compatible with USB 2.0 and 1.x devices