Specially designed for Multi-rotors, the XM series esc is the upgraded version of the SN series with a more advanced processor, running at frequencies of up to 50MHz making it capable of supporting high KV motors.
The PCB boards have been redesigned to be compact, more impact resistant and boast new, ultra low resistance MOSFETS allowing for higher efficiency.
The new slim profile design makes it possible to house your ESC's inside of your multi-rotors arms. The arm tubes, (square or round) need to be a minimum of 10mm ID. Cool stuff :)
Sporting BLHeli's Oneshot125 firmware, results in quicker, more linear and smoother throttle response.