Mtroniks Viper Marine 25 Speed Controller Forward and reverse speed controller from Mtroniks handling every job you can expect from the latest state of the art technology. NEW built in failsafe to protect against complete loss of signal or when out of range (compatible with all manufacturers receivers)**INDUSTRY FIRST** ABSOLUTE short circuit and motor overload protection 25A current limit Dual core microprocessor 6-12Volts input voltage Adjustable features include programmable reverse (including disable) & programmable brakes on the reversible range 4 Layer super power circuit board Thermal integrated protection system Digital one touch set up Legendary 100% waterproof design Dimensions : L39.0mm x W34.0mm x H13.0mm Weight : 55g All Mtroniks Viper ESCs are capable of running up to 4500mAh cells & the latest high spec motors. Each VIPER ESC incorporates the latest state of the art technology and GEN-Xi power FETs!