iFlight SucceX-E Mini F4 is a small control unit with a pitch of mounting holes 20x20mm. The board uses the proven gyro MPU6000, has 8MB of memory for the Blackbox and can handle 2-6S batteries. There is a 5V BEC on the board to power the camera, receiver and possibly video transmitter, which can handle up to 2.5A. OSD support is a matter of course.