Built-in ELRS 2.4GHz Receiver, while also being compatible with external antennas for enhanced flexibility. Supports 3S to 8S battery inputs, offering versatility for racing setups. Integrated 12V BEC provides stable power for your VTX system and allows the remote control to switch VTX on and off. FPC cables secure connections with ESCs, while SH1.0 connectors enhance reliability across all other interfaces. Input voltage: 4-8S; Support LIHV battery MCU: AT32F435RGT7 Gyro: ICM42688 Barometer: N/A OSD Chip: AT7456E Flash: 16MB ( flash) UARTS: 4 Motor outputs: 4 I2C serial: Non support VTX protocol: support for MSP/Smartaudio/IRCTramp/HDZero LED controller: Yes Beeper pad: Yes Firmware target: IFLIGHT_BLITZ_ATF435(Betaflight) Wiring Suggestion: UART 1 for VTX HD / Analog UART 2 for ESC Telemet UART 4 for Built-in ELRS receiver/SBUS input UART 5 for GPS or other sensors that require a serial port The product appearance and printed words depending on the batch, but this does not affect use. Colour:As Shown Material:PCB Package Contents: 1 * FPV Flight Controller 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.