Name: ATF435 flight control MCU:AT32F435RGT7 Gyroscope:BMI270 Barometer: DPS310 OSD chip:AT7456E Black box capacity: 32MB BEC:5V2.5A/9V2A Number of serial ports: 6 Flight control firmware: ATF435 Overall dimensions: 36.5 x 35mm Hole size: 30.5 x 30.5mm (4) Product weight: 7.89 Name: E55S 4-IN-1 ESC MCU:BB21 Hole distance: 30.5 x 30.5mm (4) Weight:14.7g BEC: Not supported Firmware: Q-H-50 () Software: Q-H-25 16.7(BlheliS)/ Input voltage: 2-6S Continuous current: 55A Instantaneous current: 65A Telemetry output: Not supported Current sensor: supports ratio 200 Drive signal: DShot150/300/600, MultiShot, OneShot Due to different batches, the appearance, color and printed words of the product , which will not affect the use. Colour:Green Material:PCB Package Contents: 1x Flight Controller 1x ESC Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.