GEPRC DarkStar20 is a small 2" frame, which is suitable for building a drone with DJI O3 or Caddx Vista. This makes it one of the smallest frames that can be fitted with DJI's digital video transmission. Of course, the frame can also be equipped with analog video transmission. The frame has a diagonal motor distance of 90mm and motor mounting on three screws. It is thus suitable for motors of size 1102/1103 and similar. The frame can accommodate AIO boards with 25,5x25,5mm mounting holes and video transmitters with 20x20mm or 25,5x25,5mm mounting holes. On the bottom of the frame there is a 17,3x13,5mm battery slot. There is a linear antenna holder at the rear of the frame.