Micro VIPER MARINE 10 ESCThe MicroViper Marine10 is a miniature Brushed Speed Controller designed specifically for use in small scale, low power RC boats. The MicroViper Marine10 has a very small footprint, measuring just under 26. 0mm square, making it seem even smaller is the fact that is only an incredible 9. 0mm high!! It has a 10Amp motor limit, what this means is that you can use any, DC brushed motor, as long as the current drawn by that motor does not exceed 10Amps