SignaLink USB - The SignaLinkTM USB combines the legendary performance of our SignaLink SL-1+ with a state of the art “built-in” low-noise soundcard. The SignaLink USB has only one USB connection to the computer, and in most cases, only one connection to the radio. Convenient front panel controls make setup and operation very easy. The SignaLink USB is fully isolated and is compatible with ALL radio Mic, Data, and Accessory Ports, and supports virtually ALL sound card Digital and Voice modes.
SignaLink SL-1+ - The SL-1+ connects to your computer's sound card and to your radio's Mic, Data or Accy Port. It is designed to work with ALL computer sound cards, and with ALL radios. The SignaLink SL-1+ is compact, low powered and fully isolated for optimum performance. It supports ALL sound card Digital and Voice modes, and does NOT use a serial or USB port!