NOW COMES WITH 12 AMP BEC built into esc (20 AMP PEAK) Our Dual Belay Electronic Speed Controller is a high powered, silent dual ESC for running two non-sensored brushless and outrunner motors. All units will come programmed with a base tune set to the KV to match the motor of your choosing. With a built in insulating PCB board and soldered from the factory, this is the safest and most compact set up we could design. Providing a hardware rating of 70 Amps of continuous and 110 Amps of burst, the control and power is delivered smoothly throughout the entire throttle band. Tested on 4S direct power servos with no issues. 4S Max recommended for Rock Crawlers. (Check manufacturer specifications on servo and motor operation voltage before running large voltage batteries.) NOW COMES CONFORMAL COATED FROM THE FACTORY Updated with a built in Zener Diode and Heat Sink Size: 55mm x 23mm x 18mm Weight: 62g with wires 1 Year Warranty Covering everything except moisture damage and misuse Includes: -USB Programmer and Heat Shrink (if purchasing multiples your order will include 1 programmer unless requested by the customer.) -2x Direct Battery Power JST Connectors -1x Receiver Connector for High Power BEC -4mm Bullet Motor Connectors on 4 inch wires. -XT30 Battery Connector ONLY USE THE SUPPLIED PROGRAMMER WITH THE BUILT IN BEC UNIT. HARDWARE DAMAGE AND RISK OF FIRE CAN OCCUR IF USING A PROGRAMMER WITH SUPPLIED 5V POWER TO PRGORAMMER. If you need a certain KV that isn’t listed just reach out to us and we’ll get you set up.