ADVANCED FLIGHT CONTROL: Designed for precision and performance, the F405MK2 ensures stable flight and responsive control for FPV racing drones. HIGH-POWER ESC: Includes one F55A 55A ESC capable of handling 3-6S voltages using the DSHOT600 protocol for smooth, reliable power delivery OPTIMIZED FOR RACING: Designed specifically for competitive FPV drone racing, this combo delivers the responsiveness and durability needed to excel in high-speed scenarios EASY INSTALLATION: Seamlessly integrates with most FPV racing drone setups, ensuring a hassle-free installation that gets you back in the air quickly, Wide range of use MCU: STM32F405 Frequency: 168MHZ GYRO: Gyro -42688-P OSD: AT7456E : 16M Memory Uarts: 3 Set Receiver: CRSF/SBUS/IBUS/DSM I2C: Yes Buzzer Pad: Yes CURR Pad: Yes ESC Signal: 4 Set BEC 3.3V: 0.5A BEC 5V: 2A BEC 9V: 2A LED: Yes AIR UNIT Port: Yes BEC Protection: Yes Receiver Protection: Yes Protection: Yes Input: 6S Lipo Soft Ware: Betaflight Mounting: 30.5x 30.5mm/M3 (The product appearance and printed words depending on the batch, but this does not affect use) Color: As shown Material: PCB Package Contents: 1 x FPV Stack Kit 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.