Discontinued: BrainFPV Radix 2 HD 30×30 Flight Controller
Plug-and-play connector for HD FPV with dual 4-in-1 ESC connectors for building advanced drones.
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Product Discontinued 2025
BrainFPV products are all made in the USA, and are NDAA Compliant.
BrainFPV’s RADIX 2 HD is an evolution of the legendary RADIX 2 flight controller, designed to be used with HD (Digitial) FPV Systems.
RADIX 2 HD FEATURES & SPECS
- Powerful processor: STM32H750 processor running at 480 MHz with 1 MB RAM
- Superior gyro: Bosch Sensortec BMI270 gyro / accelerometer delivering superior flight performance you are used to from the RADIX 2
- Accurate barometer: Infineon DPS310 providing accurate altitude information
- Designed for HD FPV: Compatible with all digital HD FPV systems currently available, plug-and-play connector for DJI HD FPV system
- 8S compatible: Can be powered directly from up to 8S (35 V) battery voltage
- 12S voltage sensing: When used with more than 8S, it can still measure the battery voltage, but needs to be powered using a lower voltage (e.g. 12 V)
- 16 MB built-in flash memory: For firmware, flight logs, and settings storage
- Micro SD card slot: Provides even more space for storing flight logs
- BrainFPV bootloader for driverless flashing: Simply copy the firmware file to the flight controller when connected to your computer. No more messing with DFU drivers. Can also be used for downloading logs from the Micro SD card
- 8 motor outputs: All outputs are available on connectors for single or dual 4-in-1 ESC connection. Bi-directional DSHOT for RPM filtering is supported on all outputs
- 2 servo outputs: In addition to the 8 motor outputs, the UART6 pads can be configured to be servo outputs
- 6 ½ serial ports (UARTs): 6 full ports and one RX-only port for HD system RC control connection. All with integrated inverters for S-BUS and other inverted protocols
- I2C port for external sensors
- CAN bus port for future extensibility (not currently supported in Betaflight and INAV)
- RGB status LED with customizable colour
- RGB LED output
- Buzzer output
- Analog current sensor input
- Analog RSSI input
- 5 V / 1.5 A regulator for powering the RADIX 2 HD itself and other 5 V devices (RC receiver, GPS, etc.)
- 9 V / 2.0 A regulator with pit switch for HD system: The pit switch allows you to turn off the HD system to keep it cool before take off
- Spike protector (TVS diode) to prevent damage from voltage spikes
- USB Type-C connector
- Size: 37 x 37 mm (30.5 mm hole spacing)
- Weight: 7g
- Supported firmware: Betaflight, INAV
Made in the USA – NDAA compliant
The Differences: Radix 2 HD vs. Radix 2
BrainFPV’s Radix 2 hd and Radix 2 share a lot of similarities. For example, they both use the same blazing fast h7 processor and bmi270 gyro, and both include a plug-and-play connector for dual 4-in-1 esc’s. Both fc’s deliver unparalleled flight performance. here are the differences between the two:
- Designed to be used with hd systems: No analog osd
- Improved voltage regulators and filtering
- Micro sd card slot
- Can bus port
- Plug-and-play connector for HD systems
I2C port for external sensors
Includes:
- RADIX 2 HD flight controller
- Silicone anti-vibration grommets 4x
- BrainFPV 4-in-1 ESC cable kit (cables and connectors to make a cable that works with any 4-in-1 ESC with a JST-SH 7 pin, 8 pin, or 10 pin connector)
- 5-pin cable for motor outputs 5 to 8
- 6-pin cable for custom HD system connection (for DJI, the cable included with the Air Unit can be directly connected to the RADIX 2 HD)
- Stickers
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SHIPPING & DELIVERY
We are based in the UK and ship to most destinations worldwide.
We dispatch orders during the times shown on our Dispatch Schedule. Orders placed before the daily dispatch cutoff will ship the same day (subject to stock availability). Orders placed after the cutoff will ship on the next scheduled dispatch day.
A confirmation email is sent once your order has been packed. If you need to amend your order, please contact us as soon as possible — once shipped, we’re unable to make changes.
We work with trusted delivery partners including Royal Mail, DHL, UPS, Fedex and Parcelforce. If you have a delivery requirement or would like to arrange collection, please get in touch.
Next Dispatch: Mon 18 May
Please fill in the fields below with the shipping destination details in order to calculate the shipping cost.
Shipping to the UK
- Order before the daily dispatch cutoff for same day dispatch.
- FREE delivery available on qualifying orders over £99 (under 1kg).
For small, low-value orders, Royal Mail First Class is our most economical option. Royal Mail Tracked 24 is the most popular choice, offering full tracking and flexible delivery options. For guaranteed next working day delivery, we recommend Royal Mail Special Delivery.
Royal Mail delivers to residential addresses Monday to Saturday, while courier services (including DHL) typically deliver Monday to Friday.
International Postage
- USA orders: Import duties and taxes are prepaid by us — no additional customs charges on delivery.
- Other destinations: Customs duties or import taxes may apply and are the responsibility of the recipient.
Smaller, lower-value orders may be sent via Airmail or tracked postal services. Economy road and express air courier options are available depending on destination. For faster delivery, we recommend express air courier services such as DHL Express, which typically deliver within 1–2 working days across Europe and a few working days for most other destinations.
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