Advanced flight control system with high-performance F7 processor, integrated 55A 128K BLHeli32 ESC, supports 6S power for strong responsiveness and unparalleled flight stability. High-performance ESC: Equipped with 55A 128K BLHeli32 ESC, this stack supports up to 6S voltage and Dshot1200 protocol for a smooth and responsive flight experience. Seamless integration: Designed to be compatible with for systems, this flight controller stack provides seamless setup and operation, enhancing the functionality of your drone with smooth real-time data transfer. Efficient connectivity: Equipped with APP WIFI connectivity, the device can easily adjust and update firmware directly from your smartphone, ensuring your drone is always at . and reliable: Built to last, perfect for racing and freestyle drone setups. MK4 F722 APP FC:MCU:STM32F722 Frequency:216MHZ GYRO:BMI270 OSD:AT 7456E :16M Memory Uarts:6 Set Receiver:TBS/SBUS/IBUS/DSM AIR UNIT Port:Yes WIFI: APP VTX Switch:Yes Input:6S Lipo Soft Ware:Betaflight Mounting:30.5x 30.5mm/M3 F55_128K ESC: Output Current:55A Current:65A Input:3-6S Lipo BLheli:BLheli-32 PWM:24-128K Target: F55_128K Protocol:Dshot 300/600/1200 Mounting:30.5x30.5mm,Φ3 (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.