Connect your Garmin Descent Mk2i/Mk2/Mk2s, Mk3/Mk3i, G1 and G1 Solar dive computers to this charging clip and use the attached USB interface to plug into your computer or USB-A to mains AC power adapter (not included) to recharge the battery. It can also be used to transfer data between your Garmin and desktop computer. This charger is NOT compatible with any other Garmin products and is also not compatible with the Mk1 series.