USB on right side
PPM/PWM input as through-hole
3.3V, I2C on standard-size headers
Fully pinout compatible with rev5 accessories (OSDoge etc)
SBUS Inverter
Spektrum compatible diversity rx SPM4648 or serial rx SPMAR7700
MPU6500
Sonar pads w/resistors added for direct connection to 5V sonar
All extra pads (FT, GP, A5) on top, only sonar on bottom
BMP280 barometer
16mbit flash