{"product_id":"betafpv-cube-g4-2-4s-30a-3in1-v1-elrs-2-4g-brushless-flight-controller","title":"BetaFPV Cube G4 2-4S 30A 3in1 V1 ELRS 2.4G Brushless Flight Controller","description":"\u003cp\u003e\u003cspan\u003eThe Cube Brushless Flight Controller is BETAFPV's brand-new 2-4S AIO FC, engineered specifically for propulsion upgrades of Pavo whoops. This\u003c\/span\u003e\u003cspan\u003e 3IN1 board integrates the STM32G473 MCU, a powerful 2-4S 30A ESC, and Serial ELRS 2.4GHz RX into a single compact design, tailored for digital VTX whoops. Featuring a robust 30A continuous ESC—upgraded from 20A with 2oz copper thickness for superior thermal efficiency—the Cube FC reliably meets the surge demands of 2-4S whoops during aggressive freestyle maneuvers. Powered by a 168MHz MCU with exceptional computing capacity, it delivers responsive flight control and silky-smooth handling for both freestyle and cinematic flying. Whether you're upgrading an existing build or starting from scratch, the Cube FC provides a powerful, affordable, and reliable foundation for the ultimate digital whoop experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eCheck out all our \u003c\/span\u003e\u003ca title=\"Whoop style AIO Flight Controllers for FPV Drone Racing and Freestyle sold by PyroDrone\" href=\"https:\/\/pyrodrone.com\/collections\/whoop-style-aio-flight-controllers\" style=\"font-size: 0.875rem;\" target=\"_blank\"\u003eWhoop Style AIO Flight Controllers\u003c\/a\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e and the rest of our \u003c\/span\u003e\u003ca title=\"BetaFPV Products for FPV Drone Racing and Freestyle sold by PyroDrone\" href=\"https:\/\/pyrodrone.com\/collections\/betafpv-products\" style=\"font-size: 0.875rem;\" target=\"_blank\"\u003eBetaFPV Products\u003c\/a\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e! \u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2778\/6650\/files\/Cube_Brushless_Flight_Controller_2226ac1b-b504-47a5-a5dc-a06bb998dfb5.webp?v=1785565347\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAttention\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eFlight controllers are covered for manufacturer defects. Issues arising from user errors, physical crash damage, damage during installation or dismantling, modifications, power surges, electrical fires, or water exposure are not covered.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003ch3\u003eFeatures:\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e3-in-1 Integration: Combines STM32G473 MCU, 2-4S 30A ESC, and Serial ELRS 2.4GHz RX in a single compact board.\u003c\/li\u003e\n\u003cli\u003eContinuous 30A ESC: Upgraded to a robust 30A continuous current with 2oz copper thickness for reliable power.\u003c\/li\u003e\n\u003cli\u003eHigh-Performance MCU: STM32G473 processor running at 168MHz delivers excellent computing capacity for responsive flight performance.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDigital VTX Optimized: An affordable, streamlined solution specifically designed for digital HD whoop builds.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFuture-Proof Expandability: Additional serial ports reserved for external devices like GPS modules, offering room for customization and upgrades.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications:\u003c\/h3\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003eFC\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eMCU: STM32G473C\u003c\/span\u003e\u003cspan\u003eEU6\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eGyro: ICM42605, 8KHz\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBlackbox memory: 16MB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSensor: Voltage \u0026amp; Current, Barometer (TCBP001TA)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBEC: 9V@2A, 5V@3A\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUART: UART 1, UART 2, UART 3 (For RX), UART 4 (For HD VTX)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBetaflight OSD: \/\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eESC: 30A continuous\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRX: Serial ELRS 2.4GHz (V3.5.6)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eFC \u003c\/span\u003e\u003cspan\u003efirmware: 2025.12.0-beta_BETAFPVG473_V3\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUSB port: SH1.0-4Pin\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMotor connector: JST1.25\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBattery connector: XT30\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMounting hole size: 26mm x 26mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eWei\u003c\/span\u003e\u003cspan\u003eght: 6.8±0.2g\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eESC\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003ePower inpu\u003c\/span\u003e\u003cspan\u003et: 2-4S Lipo\/LiHV\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCurrent: 30A continuous\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eESC firmware: v0.19.2 48KHz Bluejay\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003carticle class=\"4ever-article\"\u003e\u003cspan\u003eFirmware target: C-X-70 48KHz.hex\u003c\/span\u003e\u003c\/article\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDigital signal protocol: DShot150, DShot300, DShot600\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eRX\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRX: Serial ExpressLRS 2.4GHz\u003c\/li\u003e\n\u003cli\u003eAntenna: Copper wire 31mm length\u003c\/li\u003e\n\u003cli\u003eFirmware target: BETAFPV 2.4G AIO RX\u003c\/li\u003e\n\u003cli\u003eTelemetry output power: \u0026lt;12dBm\u003c\/li\u003e\n\u003cli\u003eELRS firmware version: ELRS 3.5.6\u003c\/li\u003e\n\u003cli\u003eFlash firmware via WIFI: Support\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2778\/6650\/files\/Cube_Brushless_Flight_Controller_top_front.webp?v=1785565422\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2778\/6650\/files\/Cube_Brushless_Flight_Controller_bottom_front.webp?v=1785565434\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigital-Ready 3IN1 FC\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEngineered 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.\u003c\/p\u003e\n\u003cp\u003e \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2778\/6650\/files\/Cube_Brushless_Flight_Controller_3IN1_AIO.webp?v=1785565449\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2-4S Continuous 30A ESC\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBy 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.\u003c\/p\u003e\n\u003cp\u003e \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2778\/6650\/files\/Cube_Brushless_Flight_Controller_continuous_30A_ESC.webp?v=1785565467\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2778\/6650\/files\/Screenshot_2026-08-01_092454.png?v=1785565506\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSerial ELRS 2.4G RX\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSerial 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.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePlugin and unplug the flight controller three times;\u003c\/li\u003e\n\u003cli\u003eMake sure the RX LED is doing a quick double blink, which indicates the receiver is in bind mode;\u003c\/li\u003e\n\u003cli\u003eMake sure the RF TX module or radio transmitter enters binding status, which sends out a binding pulse;\u003c\/li\u003e\n\u003cli\u003eIf the receiver has a solid light, it's bound.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Serial ELRS 2.4G RX can be updated via Wi-Fi or Betaflight serial passthrough. Here is the way to update the Serial ELRS 2.4G RX firmware through passthrough.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePlug in your FC to your computer, connect to ExpressLRS Configurator instead of Betaflight Configurator;\u003c\/li\u003e\n\u003cli\u003eChoose target \"BETAFPV 2.4GHz AIO RX\";\u003c\/li\u003e\n\u003cli\u003eFlash using the B\u003cspan\u003eetaflight\u003c\/span\u003e\u003cspan\u003ePassthrough option in ExpressLRS Configurator.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e\u003cem\u003e\u003ca href=\"https:\/\/support.betafpv.com\/hc\/en-us\/articles\/4404231679129-How-to-Flash-Firmware-of-ELRS-RX-TX\"\u003eHow to flash firmware via Wi-Fi here.\u003c\/a\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBluejay ESC Firmware\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWith BB51 ESC solution, Cube Brushless Flight Controller is based on V0.19.2 48KHz Bluejay, it supports DShot150, DShot300, DShot600, and even RPM filtering in Betaflight, offers 24KHz, 48KHz, and 96KHz fixed PWM frequency for options, and custom start-up melodies. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003ca href=\"https:\/\/github.com\/bird-sanctuary\/bluejay\" class=\"rte__image\" target=\"_blank\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopifycdn.net\/s\/files\/1\/1778\/6615\/files\/1_f1e8c5ed-49a0-488e-8ba6-74c3ff08aa56_160x160.png?v=1668162831\"\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eDO NOT flash the firmware with a shorter interval, \u003c\/strong\u003eotherwise, there will be a certain chance of stalling and burning the flight controller.\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eESC-Configurator:\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/preview.esc-configurator.com\/\"\u003ehttps:\/\/preview.esc-configurator.com\/\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/github.com\/4712\/BLHeliSuite\/releases\/tag\/16714903\"\u003e\u003cspan\u003eDownload BLHeliSuite16714903\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/github.com\/bird-sanctuary\/bluejay\/releases\"\u003e\u003cspan\u003eDownload the Bluejay ESC firmware. Please choose C_X_70_48_v0.19.2.hex\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1778\/6615\/files\/Bluejay_firmare_cx70.png?v=1782787569\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow to Use Serial Ports, Intergrated RX and VTX\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlease note that by default, UART3 is connected to the RX and UART4 is connected to the HD VTX. To release UART3, please remove the resistor. Additionally, this FC reserves 2 complete full-featured serial ports that can be used for external CRSF\/SBUS receivers, GPS, or other serial devices. You can refer to the below pictures.\u003c\/p\u003e\n\u003cp\u003e \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2778\/6650\/files\/Cube_Brushless_Flight_Controller_connection.webp?v=1785565569\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch3\u003e Package Includes:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e1 * Cube Brushless Flight Controller\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 * 220uF 25V Capacitor\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 * 30mm Connector Cable for Digital VTX\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 * 50mm Connector Cable for Digital VTX \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e1 * 50mm XT30 Cable \u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 * USB Adapter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 * USB Adapter Cable\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e4 * 8mm Shock Absorbing Balls\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e4 * 6.6mm Shock Absorbing Balls\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e4 * M2 Nuts\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e4 * M2*10 Screws\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2 * 0.8mm Heat Shrink Tubing\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2778\/6650\/files\/Cube_Brushless_Flight_Controller_package_600x600_1c9e9a15-72b7-428f-8e72-7dfd9f7364c8.webp?v=1785565614\" alt=\"\"\u003e\u003c\/p\u003e\n\u003c\/article\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"BetaFPV","offers":[{"title":"Default Title","offer_id":44550568673323,"sku":"H2-14625","price":70.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2778\/6650\/files\/Cube_Brushless_Flight_Controller_front_900x_20210aa4-956c-42a5-8a3e-a741b3687fa0.jpg?v=1785565221","url":"https:\/\/pyrodrone.com\/products\/betafpv-cube-g4-2-4s-30a-3in1-v1-elrs-2-4g-brushless-flight-controller","provider":"Pyrodrone","version":"1.0","type":"link"}