The IOGEAR USB 2.0 4-Port BoostLinq Ethernet combines a USB extender and a USB hub to allow connecting as many as four USB 2.0 (and/or USB 1.1) devices from up to 164 feet away from your computer. Connected devices still maintain a high-speed data transfer rate of up to 480Mbps, while operating from a more convenient location. The USB 2.0 4-Port BoostLinq Ethernet converts a USB 2.0 or USB 1.1 connection to RJ-45, and sends the USB data over a common Cat5, Cat5e or Cat 6 Ethernet cable up to a distance of 164 feet (50 meters). The USB 2.0 4-Port BoostLinq Ethernet is considered an active repeater, using a small power supply to amplify the USB signal and preserve the integrity of the data over long distances. The power supply also helps maintain enough current to power any connected USB devices such as webcams, hard drives, etc.