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
Save 10%

Pay in installments of $25.50 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Oct 2 - Oct 7

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

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

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.7 ★★★★★
Based on 17 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
J
Verified Purchase
Juan Martinez
Lake Worth, US
★★★★★ 5
Fast delivery
Worked perfectly
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2026
T
Verified Purchase
Tee
Grantham, US
★★★★★ 5
Great ink great price
Purchased ink for sublimation projects. Print colors were great true colors. Ink lasted a long time. Did not affect my epson ET 15000 in any way. Love this ink
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 30, 2026
G
Verified Purchase
Great game
Whiting, US
★★★★★ 5
Great product
Hippo brand is the best sublimation ink all my items turn out Brite and fabulous
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 2, 2026
S
Verified Purchase
Scott W.
Dallas, US
★★★★★ 5
Perfect for your Sublimation Needs
Color: BCMY
If you're into sublimation printing—whether as a hobby or a small business—the Hiipoo Sublimation Ink Refill Bottles are a must-have. This ink performs exceptionally well with a variety of Epson inkjet printers (like the WF-7710, ET-2760, ET-2720, ET-15000, C88, C88+, etc.) and delivers consistently vibrant, professional-looking results across different substrates. The color vibrancy is outstanding. Blacks are deep and rich, and the cyan, magenta, and yellow are true-to-shade. The ink produces clean, detailed images on all kinds of sublimation blanks—from mugs and T-shirts to mousepads and phone cases. Whether you’re pressing on polyester fabrics or coated surfaces, the prints come out sharp and vivid. The bottles are designed for easy refilling, especially with EcoTank models—they fit well and fill smoothly with little to no mess. For other compatible Epson models like the WF series, the process takes a bit more care, but it’s still user-friendly. This ink has worked flawlessly with heat press transfers on a variety of materials. Once heat-pressed, the colors stay strong—no bleeding, fading, or smudging.The sublimation transfers hold up very well over time. After several washes (for shirts and fabric items), the prints remain intact and bright. It’s also a plus that the ink doesn’t clog the print heads if used regularly and maintained properly. Hiipoo Sublimation Ink is a top-tier choice for both beginners and experienced crafters. It’s affordable, reliable, and produces beautiful results across a wide range of sublimation projects. Whether you’re customizing T-shirts, mugs, or phone cases, this ink brings your designs to life. Rating: 5/5 – Excellent performance, vibrant colors, and professional results. Highly recommended.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 6, 2025
A
Verified Purchase
Amazon Customer
Grantham, US
★★★★★ 5
Good ink
Color: BCMY
I like this ink, it has never failed me. You do have to be careful when using it or it will make a mess. It is hard to remember which needle was used for the color, the second time they are used. Washing them out still leave a small amount of color but not so much that it will change the color.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 9, 2026

recommand products