BETAFPV Cube 2-4S Brushless FC

 Attention

Bullet Points

• 3-in-1 Integration: Combines STM32G473 MCU, 2-4S 30A ESC, and Serial ELRS 2.4GHz RX in a single compact board.
• Continuous 30A ESC: Upgraded to a robust 30A continuous current with 2oz copper thickness for reliable power.
• High-Performance MCU: STM32G473 processor running at 168MHz delivers excellent computing capacity for responsive flight performance.
• Digital VTX Optimized: An affordable, streamlined solution specifically designed for digital HD whoop builds.
• Future-Proof Expandability: Additional serial ports reserved for external devices like GPS modules, offering room for customization and upgrades.

Specifications

FC

• MCU: STM32G473CEU6
• Gyro: ICM42605, 8KHz
• Blackbox memory: 16MB
• Sensor: Voltage & Current, Barometer (TCBP001TA)
• BEC: 9V@2A, 5V@3A
• UART: UART 1, UART 2, UART 3 (For RX), UART 4 (For HD VTX)
• Betaflight OSD: /
• ESC: 30A continuous
• RX: Serial ELRS 2.4GHz (V3.5.6)
• FC firmware: 2025.12.0-beta_BETAFPVG473_V3
• USB port: SH1.0-4Pin
• Motor connector: JST1.25
• Battery connector: XT30
• Mounting hole size: 26mm x 26mm
• Weight: 6.8±0.2g

ESC

• Power input: 2-4S Lipo/LiHV
• Current: 30A continuous
• ESC firmware: v0.19.2 48KHz Bluejay
• Firmware target: C-X-70 48KHz.hex
• Digital signal protocol: DShot150, DShot300, DShot600

RX

• RX: Serial ExpressLRS 2.4GHz
• Antenna: Copper wire 31mm length
• Firmware target: BETAFPV 2.4G AIO RX
• Telemetry output power: <12dBm
• ELRS firmware version: ELRS 3.5.6
• Flash firmware via WIFI: Support

Diagram

Digital-Ready 3IN1 FC

Engineered specifically for digital VTX whoops, the Cube 3IN1 FC consolidates the STM32G473 MCU, 2-4S 30A ESC, and Serial ELRS 2.4GHz RX into a single compact board—streamlining builds while reducing complexity. The STM32G473 MCU running at 168MHz delivers excellent computing capacity for responsive flight performance, while additional serial ports reserved for external devices like GPS modules offer room for customization and upgrades.

2-4S Continuous 30A ESC

By integrating 2oz thick copper on the board to enhance thermal efficiency and current handling, the Cube FC features a significantly upgraded 2-4S Bluejay ESC—delivering a robust 30A continuous current, up from 20A in F405 FCs. This ensures reliable power delivery to meet the surge demands of Pavo whoops during aggressive freestyle maneuvers, giving pilots the confidence to push their limits.

Cube 2-4S 30A FC vs. F4 2-3S 20A FC

Serial ELRS 2.4G RX

Serial ELRS 2.4G RX uses the Crossfire serial protocol (CRSF protocol) to communicate between the receiver and the flight controller board. So the Serial ELRS 2.4G RX is available to support upgrading to ELRS V3.0 with no need to flash Betaflight flight controller firmware. Enter binding status by power on/off three times.

• Plugin and unplug the flight controller three times;
• Make sure the RX LED is doing a quick double blink, which indicates the receiver is in bind mode;
• Make sure the RF TX module or radio transmitter enters binding status, which sends out a binding pulse;
• If the receiver has a solid light, it’s bound.

Package Include:

1x BETAFPV Cube 2-4S Brushless FC

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