SKU: 72593376302

Sub250 Redfox A3 F722 35A/45A 4in1 AIO Flight Controller for 2 to 3.5 inch Drones - Choose Version

Sale price$91.79 Regular price$101.99
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Ships within 48 hours · Estimated delivery Sep 12 - Sep 17

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Description

Sub250 Redfox A3 F722 35A/45A 4in1 AIO Flight Controller for 2 to 3.5 inch Drones - Choose VersionIntroducing the Redfox A3 series flight controller, a new choice in lightweight FPV drones brought to you by the Sub250 team. Designed specifically for 2 to 3. 5 inch drones, it integrates the powerful computational capabilities of the F722 MCU to ensure exceptional flight performance. Featuring an independently designed Type C adapter board, it can be conveniently placed at any location on the frame for quick parameter adjustments. Onboard DJI 6 Pin

Introducing the Redfox A3 series flight controller, a new choice in lightweight FPV drones brought to you by the Sub250 team.
Designed specifically for 2 to 3.5-inch drones, it integrates the powerful computational capabilities of the F722 MCU to ensure exceptional flight performance.
Featuring an independently designed Type-C adapter board, it can be conveniently placed at any location on the frame for quick parameter adjustments.
Onboard DJI 6-Pin interface, offering direct connectivity to digital video transmission systems.
Equipped with four sets of UART ports, providing more possibilities for installation and upgrades. It also comes with a [email protected] BEC to meet the increasing demand for additional peripherals.
Sub250 is committed to combining “lightweight” and “high performance” to bring a brand new experience to the racing drone field. The Redfox A3 series flight controller helps you explore the perfect fusion of lightweight design and exceptional performance.

Check out all our Whoop Style AIO Flight Controllers and the rest of our Sub250 Products

Features:

  • STM32F722 MCU, powerful computing performance with high-speed and real-time response.
  • Reliable and durable BLHeli_32 35A/45A ESC supports up to 128khz PWM frequency.
  • Independently designed DJI 6PIN interface, directly connected to DJI digital video transmission system.
  • TypeC adapter board with boot button, SH1.0 5PIN direct plug, meeting the placement needs of various kinds of small frames.
  • 4 sets of complete UART ports provide more possibilities for installation and expansion, and the optimized pad design makes welding easier.
  • [email protected] BEC meets the demands of more peripheral devices.
  • Supports functions such as OSD parameter adjustment, GPS, LED, buzzer, etc.
  • Ultra-light weight of 8.7g, 25.5mmx25.5mm M3 mounting holes, suitable for most frames on the market.

FC Specifications:

  • MCU: STM32F722
  • IMU: ICM42688-P
  • Firmware Target Name: SUB250REDFOX722AIO
  • OSD Chip: AT7456E
  • Barometer: Built-in
  • UART: 6 sets (UART1, UART2, UART3 for Digital VTX SBUS receiver, UART4, UART5 for ESC telemetry, UART6)
  • External Buzzer: Supported
  • External LED: Supported
  • 6-Pin DJI Air Unit Plug: Supported
  • USB Port Type: SH1.0 5PIN to Type-C
  • BEC Output: 5V 2.5A
  • Mounting: 25.5mm x 25.5mm, φ3mm hole reduces to φ2mm with Anti-vibration Silicone Grommet
  • Dimension: 33.5mm(L) x 33.5mm(W) x 6.45mm(H) ,1.6mm Board Thickness
  • Weight:8.7g


ESC Specifications:

  • Continuous Current: 35A/45A
  • Burst Current: 45(10s)/55A(10s)
  • Power Input: 2~6S (LiPo Battery)
  • ESC Protocol: Dshot300, Dshot600
  • Current Sensor: Supported
  • ESC Firmware: BLHeli_32

Download the Installation Manual Here

Package Includes:

  • 1 x Redfox A3 35A/45A AIO
  • 1 x External USB-C Port Module (Wire Length:150mm)
  • 1 x 6Pin DJI Air Unit Connecting Cable
  • 5 x M2*6.5 Black Anti-vibration Silicone Grommets(4 x Pre-installed)
  • 5 x M2*6.5 Red Anti-vibration Silicone Grommets
  • 5 x M2x10 Screws
  • 8 x M2 Nylon Nuts
  • 1 x 35V 470uf Capacitor
  • 1 x XT30 16AWG 70mm Power Cable
  • 1 x Manual & Support Card
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 72593376302

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Mòdòp+00
Alexandria, US
★★★★★ 5
Very good wireless mouse
Color: Matte Black, Color: Matte Black
Everything is great with this mouse. It is comfortable, responsive, and easy to use. The wireless connection works perfectly, and the battery lasts a long time. Very good value for the price, I highly recommend it.
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Reviewed in the United States on May 21, 2026
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Protonicx
Bozeman, US
★★★★★ 5
Recommended for sure ts peak
Color: Matte Black
Not really the best at explaining, but here's something simple :v This mouse works very well for everything in my opinion, especially gaming. It does has silent clicks, but as a GD player I click the mouse kinda hard, and it's a bit louder but that's ONLY because of the way I click. The mouse is very responsive and pretty comfortable, although I have no Idea what a 10/10 comfortable mouse feels like. This mouse is durable, don't ask how it happened, but it's survived a few drops and still works perfectly. As far as connectivity and compatibility, I'm not exactly sure, but it connected to my Windows 11 as soon as I plugged the driver in, it also connected to my PS5 without issues. To easily tell the size, it's about as wide as an apple, and as long as maybe half of a normal-sized water bottle. The 3 bars of lighting that show the battery percentage aren't exactly the brightest, but it's easy to tell that the mouse is on and how much battery it has. The easily accessible customizable DPI button has about 4 levels to choose from, which all work well, level 1 is pretty slow and level 4 is fast if you're unfamiliar with higher DPI. The 3rd setting for the DPI is very easy to control, I feel like it follows my movements at a very nice speed.
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Reviewed in the United States on April 16, 2026
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Verified Purchase
Carlos Vasquez
Draper, US
★★★★★ 5
Nice yellow mouse
Color: matte yellow
The mouse is really nice, comfortable, and easy to use. It stands out on my computer desk thanks to its yellow color. It is wireless and charges via USB—it doesn't use batteries, which I’ve found to be excellent so far. I haven't been using it for very long, so I don't know how long the charge lasts.
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Reviewed in the United States on April 23, 2026
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A. C. Graner
Battle Creek, US
★★★★★ 4
A reliable mouse for people who don't need all the bells and whistles.
Color: Matte Black
I wanted a mouse without all the bells and whistles. I don't care about programming my mouse or having 18 ways to move it remotely. All I want is an ergonomic point and click device. This mouse meets my requirements. I give it four stars because, on waking my computer, the cursor is "frozen" until I click it. And, the mouse is a bit small for my hand. These nits aside, this mouse is perfect for my needs.
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Reviewed in the United States on October 4, 2025
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Caden Estes
Chelsea, US
★★★★★ 5
Reliable mouse.
Color: Matte Black
Amazing mouse if you want something simple for work, has good click sounds, doesn't need to be charged often, and is easy to transport! It also is really good for smoothness and comforting on grip.
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Reviewed in the United States on May 12, 2026

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