The USBVGADOCKGB USB (Universal Serial Bus) Docking Station offers the combined functionality of a 4-in-1 USB (Universal Serial Bus) 2.0 device docking station, converting a single USB (Universal Serial Bus) 2.0 port into multiple connection ports, including a VGA Port, 10/100 RJ45 network port, dual (3.5mm phono) audio ports & 4 additional USB (Universal Serial Bus) 2.0 ports.