StarTech.com 3 Port PCI Low Profile High Speed USB 2.0 Adapter Card PCI220USBLP
This 3-Port PCI USB 2.0 Adapter Card adds two external USB 2.0 ports as well as one internal USB 2.0 port, through simple installation in a single PCI slot.  The PCI USB 2.0 card supports plug and play installation as well as hot-swappable connectivity with USB 2.0 devices, ensuring convenient, hassle-free connections without having to reboot the computer. The 3-port PCI USB 2.0 adapter card features a low-profile design that's suited for small form factor cases and is backed by StarTech.com's Lifetime Warranty and free lifetime technical support.