This pci usb card adds seven usb 20 ports 1 internal usb a female 2 internal usb motherboard header and 4 external usb a female to your pci capable pc the pci usb 20 card is a versatile solution that lets you add usb 20 connections without having to upgrade the system motherboard an all in one solution the pci usb card supports usb 20 device connections for full data transfer speeds of up to 480mbps and is backward compatible with usb 11 devices max transfer rate 12mbps allowing you to conne