Sub250 Huma20 is a compact 2" cinewhoop frame made entirely of 2mm carbon fiber, providing excellent durability while keeping the weight low. The FPV camera is mounted in a 3D-printed holder connected to the frame through rubber soft mounts to minimize vibrations. The frame supports both analog and digital video transmission systems. To use it with the DJI O4 Pro unit, an alternative 3D print set is required. It is designed for AIO flight controllers with a 25.5×25.5mm mounting pattern. For VTX installation, both 20×20mm and 25.5×25.5mm mounting holes are available. The XT30 connector is fixed at the rear of the frame for easy battery connection. Motor mounting holes are 9mm M2.