Increase your ports with our retro-looking circular USB hub! This 21st-century gadget adds 4 extra ports to any Mac or PC computer through a USB port connection. Made of ABS (acrylonitrile butadiene styrene) plastic, this 2 3/8" diameter x 1 3/4" high accessory will appeal to university students and techies as well as multitasking office workers. Your pad printed logo will get plenty of exposure on this product!