Features: Perfect combination of ATmega328 and MAX7456. Flight control OS functions Supports MAVLink protocol. Uses MAVLink OSD. Supports pirate APM2.52 APM 2.6 flight model Specifications: Material:plastic、Metal Item Name: MinimOSD MAVLink OSD APM APM2 Flight Control Board Operating voltage: 5V~12V Application: DIY flight control projects. Dimensions: 2.36 in x 0.79 in x 0.20 in (6.0 cm x 2.0 cm x 0.5 cm) Weight: 0.28 oz (8 g)