Full Details on Amazon.com : http://www.amazon.com/gp/product/B001D4FS8Q?tag=tsukuyomi-20
StarTech.com 3 Port PCI 12V Powered USB Adapter Card - USB PlusPower (PCI312PUSB)
Enables a low-cost standard PC to become a powerful retail system
Backwards compatible with standard USB 20 USB 11 and Powered USB peripheral devices
Supports up to 127 devices
Connector locking mechanism prevents cables from being unplugged accidentally
3 external 12V Powered USB Connectors
Powered from either the PCI slot or the Power Supply of the PC with a standard LP4 connection
