Plug-and-play, no driver required USB bus-powered Universal external power source also included Blue LED indicator x1 for Extension Cable and USB port connection status monitoring No USB signal loss, even at a distance of up to 49.2 feet (15 meters) Power your USB devices directly from the USB port or through the included universal external power adapter Daisy chain up to 4 cables together for reaching connection distances of up to 60-meters between your USB 2.0 devices What's in the box 1 x USB 'A' male connector 1 x USB 'A' female connector