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# ESC Connector

To keep weight down the flight controller features low profile mezzanine connectors that act as the main PWM and power I/O. All new boards are shipped with a break out board that features an 8 pin JST-SH 1mm pitch connector for PWM 1-4, power in and current in. 

There are various different optional boards that can be purchased depending on application. 

*The standard breakout board:*

Suitable if using external ESC's upto 8s.

*4 Channel ESC - CBU-CM405-FC-ESC-4s4c*

Quadcopters, 4 wheel drive Rovers

*2 Channel ESC - CBU-CM405-FC-ESC-4s2c*

*Fixed wing, Boats, Helicopter, ROV, Standard Rovers*

<figure><img src="/files/GQSakhMjJdEJEwWizh5B" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/4CJMtOkc0nsm7lmrMbW6" alt=""><figcaption></figcaption></figure>