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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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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TNEarthMAMA
Waukegan, US
★★★★★ 5
Dog toy that lasts.
Size: 5 Pack
I've got a heavy chewer on my hands, so I've basically thrown money away on countless "durable" toys that get shredded in minutes. I was skeptical about these, but the "no stuffing" design caught my eye—at least there wouldn't be fluff all over my living room! I'm happy to report that these have actually lasted! My dog loves shaking them around and making them squeak. The crinkle sound is a huge bonus; it really keeps him engaged. The fact that they're lightweight makes them perfect for a game of fetch, and my dog can easily carry them around. For the price, getting a whole bundle of these is a great deal. If you're tired of cleaning up toy stuffing, I'd definitely recommend giving these a try.
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Reviewed in the United States on March 18, 2026
C
Verified Purchase
Cosmicethos
Houston, US
★★★★★ 4
Not for aggressive dogs but no stuffing is super!
Size: 5 Pack
I've bought these several times but have the attitude that toys are disposable. One of my hounds will drop right through then to pull out the squeaker before losing interest. My other hound wants to love them. Glad there is no stuffing to get all over the house but they will tear quickly.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2026
K
Verified Purchase
Keaonna Tarr
Chelsea, US
★★★★★ 5
worth the price !
Size: 5 Pack, Size: 5 Pack
Best toys for our livestock puppies since they have been getting into our outdoor things which isn’t their faults but i figure I would get these small squeaky animals toys and they are obsessed and love playing tug a war with them! They’re super soft, the quality is amazing cause these puppies are tough chew monsters, love the squeaky sound it makes and the patting are suitable as well! Definitely recommend this especially for the price and how fast shipping was !
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Reviewed in the United States on March 16, 2026
A
Verified Purchase
Aaryn Ricucci-Hill
Birmingham, US
★★★★★ 5
Solid dog toys HOWEVER...
Size: 5 Pack
Got these toys for our collie-retriever. He loves them and plays with them a lot and will even get them out in the middle of the night to play with them. Since there's no stuffing you can't throw them very far but they are good for tug-of-war and really soft. The one downside, while they techically are durable and hold up to rigorous chewing, they are not impervious as our little man finally disembowled Mr. Lion after a few months of playing with him. (Serated the lining with his teeth.) Still highly recommend.
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Reviewed in the United States on April 17, 2026
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Verified Purchase
Dorey Marshall
Carnegie, US
★★★★★ 3
Not very durable
Size: 5 Pack
They’re a great toy for the dog. However, if the dog is bigger, they are very easily destroyed.
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Reviewed in the United States on May 9, 2026

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