I use the power cable for GPS Navigon. I'm pretty happy because it does not take up much space and it plugs easily into the cigarette lighter. Its title seems to destine the only Garmin nüvi but it can connect to all devices that have a USB mini-B type. The power supply to the charger output is 5 V and 1 A. you check the manual for your GPS or on the charger if it matches what is requested by the manufacturer.