Castle Creations Castle Link USB Programming Adapter View your current program settings and set up of programmable options with point and click ease Customize values for low-voltage cutoff, prop brake strength, and governor mode gain, and more Download new software updates as they become available Expanded programming and parameters for all Castle surface controllers Allows firmware updates for better future performance of current products Set up of programmable options with point and click ease View your current ESC program settings Customize values for low-voltage cutoff, prop brake strength and governor mode gain. All-in-one support for Phoenix, Phoenix HV, Phoenix Ice, Thunderbird, Mamba Micro Pro, Mamba Max, and many more