Cube Brushless Flight Controller
Cube Brushless Flight Controller
Cube Brushless Flight Controller weight
Cube Brushless Flight Controller
Cube Brushless Flight Controller
Cube Brushless Flight Controller weight

Cube 2-4S Brushless Flight Controller

Regular price $54.99 USD Save $-54.99 USD
-1 in stock

The Cube Brushless Flight Controller is BETAFPV's brand-new 2-4S AIO FC, engineered specifically for propulsion upgrades of Pavo whoops. This 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.

Cube Brushless Flight Controller

 Attention

  • Flight 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.

    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

    Cube Brushless Flight Controller top front

    Cube Brushless Flight Controller bottom front

    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.

    Cube Brushless Flight Controller 3IN1 AIO

    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 Brushless Flight Controller continuous 30A ESC

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

     

    Cube 2-4S 30A FC

    F4 2-3S 20A FC

    MCU

    STM32G473CEU6

    STM32F405RGT6

    MCU Frequency

    168MHz

    OSD

    /

    Blackbox Memory

    16MB

    RX

    Onboard serial ELRS 2.4GHz

    VTX

    Support HD VTX

    Circuit Board Thickness

    1.2mm

    1.0mm

    ESC

    Continuous 30A

    Continuous 20A

    Motor Connector

    Gold plated JST1.25

    JST1.25

    Weight (VTX antenna excluded)

    6.8±0.2g

    5.7±0.2g

    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.

    The 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.

    • Plug in your FC to your computer, connect to ExpressLRS Configurator instead of Betaflight Configurator;
    • Choose target "BETAFPV 2.4GHz AIO RX";
    • Flash using the BetaflightPassthrough option in ExpressLRS Configurator.

    How to flash firmware via Wi-Fi here.

    Bluejay ESC Firmware

    With 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. 

    DO NOT flash the firmware with a shorter interval, otherwise, there will be a certain chance of stalling and burning the flight controller.

    How to Use Serial Ports, Intergrated RX and VTX

    Please 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.

    Cube Brushless Flight Controller connection

      Recommended Parts

      Package

      • 1 * Cube Brushless Flight Controller
      • 1 * 220uF 25V Capacitor
      • 1 * 30mm Connector Cable for Digital VTX
      • 1 * 50mm Connector Cable for Digital VTX 
      • 1 * 50mm XT30 Cable 
      • 1 * USB Adapter
      • 1 * USB Adapter Cable
      • 4 * 8mm Shock Absorbing Balls
      • 4 * 6.6mm Shock Absorbing Balls
      • 4 * M2 Nuts
      • 4 * M2*10 Screws
      • 2 * 0.8mm Heat Shrink Tubing
      Cube Brushless Flight Controller package

      Shipping Method & Delivery Times

      We offer the following shipping options:

      Expedited Shipping: Estimated delivery in 5-10 days via DHL/FedEx.

      IMPORTANT: Expedited Shipping has been temporarily suspended due to increased customs inspections. Please select Standard Shipping during checkout to avoid delays. We appreciate your understanding.

      Standard Shipping: Estimated delivery in 12-30 days via registered mail.

      Please expect a processing time of 1-2 business days (Mon–Fri, excluding holidays).

      IMPORTANT:

      • Delivery estimates are not guaranteed and may vary due to shipping address, customs clearance and carrier delays.
      • Battery orders: Expect more business days for safety inspections.
      • Out-of-stock items: Ships in 1–2 weeks (we’ll notify you via email).
      • Address errors: Double-check your shipping details during checkout. Incorrect/missing addresses cause delays or failed deliveries.

      Shipping Costs

      1. Standard Shipping

      We offer free standard shipping on all orders of $99.99 or more. For orders between $20 – $99.98, a flat rate of $5 applies. For orders under $20, a flat rate of $10 applies.

      IMPORTANT: While we cover all taxes and tariffs for Standard Shipping, please be aware that certain countries (including but not limited to India, Brazil, Israel, Argentina, and Turkey) may still impose additional customs fees that are beyond our control. These fees are determined by local regulations and will be the responsibility of the recipient.

      2. Expedited Shipping

      We offer expedited shipping service worldwide including islands area. Shipping fees are calculated automatically at checkout based on your location and order weight.

      IMPORTANT: Customers are fully responsible for customs duties, taxes, customs clearance and other costs incurred when choosing expedited shipping. If a shippemnt is returned due to unpaid import fees, return shipping costs will be charged to the customer, and no refunds will be issued for the original order.

      3. Additional Shipping Fee

      There are certain situations where you may be required to pay extra shipping fees.

      • Products with large dimensions or weight: Products with large dimensions or weight are excluded from free shipping rule due to carrier dimensional weight calculations. (Including: FPV Goggles, BETAFPV Gates & Flags, RTF FPV Whoop Kits, LiteRadio Series radio transmitter, Storage Cases)
      • Remote countries/regions: Orders shipped to remote countries or regions (e.g., islands, rural areas) may require adjusted shipping fees based on carrier surcharges.
      • Expedited Shipping with Batteries: Expedited Shipping orders containing more than 2 batteries that exceed the limits outlined in our Battery Shipping rule below will incur extra fees to cover separate battery shipments.
      • Reshipping Costs: Packages returned due to incorrect addresses or customs clearance failures (e.g., unpaid duties) will be subject to reshipping fees. Customers must cover these costs before redelivery.

      Shipping Rules

      1. Battery Shipping

      Some countries or remote regions are forbidden to ship stand-alone batteries due to restricted customs and safety regulations. If your location restricts battery shipments, we will notify you promptly and adjust your order accordingly. Review the 2. Countries/Regions Where Battery or Drone Shipping Is Restricted below for details.

      Expedited Shipping Battery Shipping: Stand-alone batteries are prohibited for expedited shipping. However, drones packed with less than or equal to two batteries or devices with bulit-in batteries (e.g., transmitters, goggles) may still qualify for expedited delivery.

      Battery Type

      International Expedited Shipping

      No batteries

      Accepted

      Contained in

      Accepted

      Packed with (no more than 2 batteries)

      Accepted

      Stand-alone

      Prohibited

      Battery Type Definitions

      • Stand-alone: Package ONLY contains batteries or cells; NO equipment.
      • Packed with: Package contains equipment + cells or batteries that are NOT installed in the equipment. For example, BNF drones with batteries or RTF drone kits.
      • Contained in: Package has lithium batteries contained in equipment (properly installed in the equipment they are intended to operate). For example, radio transmitter or goggles.

      2. Countries/Regions Where Battery or Drone Shipping Is Restricted

      Due to customs regulations and carrier restrictions, we cannot ship drones or batteries to the following destinations:

      • Drones & Batteries Restricted: Brazil, Israel, Armed Forces Europe (APO/FPO/DPO), P.O. Box, Dominican Republic, Maldives
      • Batteries Restricted: Cyprus, Cote d'Ivoire, Brunei, India, Argentina, Turkey, Serbia, Iceland, Guadeloupe, Georgia, Belarus, Bosnia and Herzegovina, Montenegro, Saint Barthelemy, Oman, Armenia, Qatar, Costa Rica, Kuwait, Jamaica, Malta, Jersey, New Caledonia, Kyrgyzstan, Burundi, French Guiana, Mauritius, Greenland, Lebanon, Venezuela, Sri Lanka, Indonesia, U.S. remote islands

      Note: The list is subject to change without prior notice due to evolving customs regulations, carrier restrictions, and local legislation.

      3. Address Requirements

      To ensure successful delivery, please carefully follow these requirements based on your location. Incorrect or incomplete information may cause delays or failed deliveries.

      Japan & Germany: Street name and number, apartment/unit number (if applicable) are required. Omissions are not allowed.

      Australia & United States: Provide the postal code that matches the city, and ensure that the city name is written correctly without any omissions or abbreviations.

      Hong Kong, Macao, Taiwan, and Mainland China: Address must be written in Chinese characters.

      Tax ID Required for Customs Clearance for orders to the following countries:

      • South Korea: Personal Clearance Code
      • Brazil: Cadastro de Pessoas Físicas (CPF)
      • Chile: Tax Identification Number (RUT)
      • India: Aadhaar Card/Pan Card/KYC number
      • Mexico: TAX ID (RFC) / Personal ID (CURP)
      • Indonesia: Nomor Pokok Wajib Pajak (NPWP)

      Delayed Or Rejected Orders Liability

      BETAFPV is not liable for delayed or rejected packages resulting from circumstances beyond our reasonable control. This includes, but is not limited to:

      Delays of shipments to remote regions: Shipping time might be delayed for 3-7 days to remote regions or over 7 days to island destinations like Hawaii, Puerto Rico, Canary Islands, etc.

      Customer-caused delay or delivery failure: These actions include, but are not limited to address changes after shipment, incorrect/incomplete addresses, invalid contact information, and refusal to accept delivery, etc.

      Force majeure: It means unforeseen, inevitable, or insurmountable objective situation and other objective conditions that cause delayed shipping, including, but not limited to: national or regional air or ground transportation system controls or interruptions (e.g., weather reasons), communication system interference or malfunction, government actions, postal administration policy changes, wars, earthquakes, typhoons, floods, fires, heavy rain, heavy fog, and other similar events.

      Packages cannot be delivered to your address during weekends, national holidays, and festivals.

      The address is a school, hotel, unit, or residential community where the courier has no access. Please provide a permanent street address.

      *Please confirm your address before payment. If corrections are needed, please contact BETAFPV customer support in a timely manner.

      Tracking Your Package

      Once your order ships, you’ll receive a notification email with the tracking number. You can also check your order status by logging into your BETAFPV account dashboard, where shipped orders display tracking links based on your selected shipping method. If your order status shows “Shipped” but no tracking details are visible, this means your package is prepared and awaiting carrier pickup. A status of “Processing” indicates we’ve received your order and are preparing it for shipment.

      Please note that you may receive more than one Shipment Notification E-mail if item(s) from your order are shipping separately.

      You can also enter the tracking number to check your package shipment status below. If you encounter issues tracking your order, contact BETAFPV customer support for assistance.

      FAQ

      1. How long until my order ships?

      All orders typically will be processed within 1-2 working days after your payment. Delays may occur during high order volumes or backorder situations.

      If there will be a significant delay in the shipment of your order, we will contact you via email. Please make sure your email address is active and remember to check the email for updates.

      2. After I place an order, how do I change my order before shipment?

      Country selections cannot be modified after checkout. If you need to change these details, please cancel the order and purchase again. Please contact BETAFPV customer support within 24 hours after placing the order if you need to change order product information or address.

      3. How do I cancel after I have placed the order, but it has not shipped?

      You can contact BETAFPV customer support for canceling if your order has not been shipped. If your order has been shipped less than 24 hours, please contact the customer service and we will try to hold your order from the shipping company.

      It is impossible to cancel if your order has been shipped over 24 hours.

      4. Under what circumstances will BETAFPV cancel an order unilaterally?

      We reserve the right to cancel orders for:

      • Unavailable product(s): BETAFPV tries to contact customers and does not get a reply in 7 days.
      • High-risk Order(s) identified by banks/Paypal: To ensure your card safety, we will cancel your order.
      • Unshippable destinations: If we are not able to ship to your location, your order will be canceled.

      *BETAFPV reserves the right to update this policy. Last revised May 2025.

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