Equipped with a built-in reverse polarity protection circuit, the ESC offers worry-free operation by preventing damage from incorrect battery connections, ensuring reliability and peace of mind every time you power up. Powered by a 32-bit M4 processor, the ESC delivers lightning-fast response, and handles more data with precision. With the potential for continuous feature optimization and expansion, it combines pro-level racing hardware with advanced software to create the ultimate game-changer on track. The Legacy now includes Smart Fan technology that runs the fan only when needed. This temperature controlled fan circuit prolongs fan life and improves overall performance. Built-in 10A switch-mode BEC with adjustable voltage from 5.0V to 7.4V (0.1V steps), delivering power and precision demanded by high-torque and high-voltage servos. Updated to include HOBBYWING's patended Softening, the Legacy now includes a useful tool for tuning tricky track conditions. NOTE *Full reverse polarity protection of the entire power system can only be achieved when using the optional non-polarized capacitor. The standard ESC is equipped with capacitor that is not protected against reverse polarity. If the battery is connected incorrectly, the capacitor may be damaged; however, the ESC itself will not be affected.*