1. 4 speed controllers in1board, only 1 pair of battery wire is needed.
2. Powerful switch mode built-in BEC (the BEC voltage outputs from the S3 connector).
3. Multiple protection features: Low voltage cut-off protection / over-heat protection / throttle signal loss protection.
4. The throttle range of each ESC can be calibrated to be suitable for different multi-rotor flying control systems / transmitters.
5. Maximum speed: 210000 RPM (2 poles motor), 70000 RPM (6 poles motor), 35000 RPM (12 poles motor).