Startech 3 Port PCI Express 12V Powered USB Card - 3 x USB 2.0 - Powered USB - Plug-in Card

The PEX312PUSB 3 Port PCI Express (12V) Powered USB Card allows you to add three Powered USB (USB PlusPower) ports to any standard form-factor sized computer, using an available PCI Express Slot. Drawing power from either the PCI Express slot or the computer power supply, the PEX312PUSB (3 Port Low Profile PCI Express 12V Powered USB Card) provides up to 3A of current to each connected device, allowing for up to three Powered USB devices to be installed at the same time.