USB 2.0 repeater cable is not a passive extension cable. it is an active device. The USB signals going in and out of the extension cable are buffered to assure signal quality and the meeting of the USB's electrical and timing spec. Using passive cables for the purpose of extension will result in signal errors and is not recommended. USB extension cable allows a USB device to have its cable length extended 15ft. The USB extension cable acts as a USB hub and buffers all downstream and upstream data traffic. High speed, full-speed and low-speed devices will function equally well with the USB extension cable.