USB 2.0 PCI Card - 2 Port from ComputerCableStore.com Adds 2 external
USB 2.0 ports with USB 2.0 speeds up to 480 Mbps. Supports any USB device (USB 1.1 or USB 2.0) and is Plug and Play for Windows 98/2000/ME/XP.
In information technology, Universal Serial Bus (USB) is a serial bus standard to connect devices to a host computer. USB was designed to allow many peripherals to be connected using a single standardized interface socket and to improve plug and play capabilities by allowing hot swapping; that is, by allowing devices to be connected and disconnected without rebooting the computer or turning off the device. Other convenient features include providing power to low-consumption devices, eliminating the need for an external power supply; and allowing many devices to be used without requiring manufacturer-specific device drivers to be installed.