Ruistart
MG90D Digital Micro Servo (6061-T6 Aluminum Gear, Alloy Case)
MOQ 5 pcs · samples available
RCinPower · Motors & Servos
SKU RS-336 HTS 8806.99 Origin Shenzhen, CN Updated Oct 2026
Price on request
Wholesale pricing is quoted per order. Send the quantity and destination and the trade desk replies within six working hours, EXW Shenzhen.
The optimized magnetic design of the Supernova 1404 gives a huge performance advantage on 2.5” and 3” props compared to other 1404 motors, while the moderate KV reduces motor heating at full throttle.

Usually, more power comes at the cost of efficiency. The Supernova 1404 breaks this rule, trading blows with the most efficient 1404 motors available despite a 25% power advantage.

A thicker flux ring and fine-tuned magnet overhang deliver a 30% uplift in torque compared to other 1404 motors. This additional torque is particularly valuable on Cinewhoop drones with bullnose props which are heavier and require more torque to accelerate.

The Supernova 1404 is the highest performing 1404 motor Chris Rosser has ever tested by a substantial margin.

What do you do when you’ve broken the world drone speed record with a motor capable of 580 kph? You bring that technology to the most popular drone category in the world: Sub-250g!
If you are seeking the ultimate performance for your sub-250g build this is it. Built on the world-drone-speed-record-breaking technology of the AOS Supernova 3220, the AOS Supernova 1404 is engineered to deliver more torque, more power, and a more exciting flying experience than any 1404 before it.
The motor is optimized for driving 2.5” Bullnose or 3” Freestyle Tri-blade props on 4S battery voltage. On the thrust test stand and in the air, Chris Rosser found the Supernova 1404 outperforms any other 1404 motor he’s tested on the market, producing more thrust and a faster response without sacrificing efficiency. The Supernova 1404 broaches no compromises, delivering the smoothest footage on a Cinewhoop and also blowing away the competition in dynamic freestyle flying.
Built on the incredible success of the AOS Supernova 2207, 2807, and 3220, the 1404 takes the same revolutionary design philosophy and scales it down for the challenging demands of sub-250g drone pilots. Thanks to thousands of finite element simulations including 4D field modelling for the first time, the Supernova 1404 delivers an exhilarating combination of control, power, and efficiency, all in service of the ultimate in-flight performance.
Exceptional designs require exceptional execution. That’s why the AOS Supernova 1404 is manufactured by RCinPower, a brand synonymous with race winning and record breaking motors. This partnership, coupled with AOS’s cutting-edge design approach, ensures that this motor not only meets but exceeds the expectations of the most demanding pilots. With the Supernova 1404, you can experience more than ever before, and still stay under 250g.
For smooth, precise low-throttle control and breathtaking top-end power, AOS recommends applying throttle expo in Betaflight. Start with Throttle MID = 0 and Throttle EXPO = 0.20, adjusting EXPO to fine-tune your desired throttle response. Increase EXPO for greater precision at low throttle or reduce it for a sharper, more aggressive feel.
Specifications:


| Brand | RCinPower |
|---|---|
| Department | Motors & Servos |
| Kv rating | 4000 KV |
| Minimum order | 1 pcs (samples available) |
| Packaging | Qty per carton | Carton (cm) | Gross weight | CBM |
|---|---|---|---|---|
| Retail box | 4 | 18 × 12 × 6 | 0.42 kg | 0.0013 |
| Inner carton | 17 | 38 × 26 × 22 | 4.6 kg | 0.0217 |
| Export carton | 147 | 58 × 42 × 38 | 21.4 kg | 0.0926 |
Placeholder packing data — confirm with your supplier before quoting freight. CBM is per export carton.
Stock supply starts at 1 pc. The 10× and 50× quantity breaks are already applied in the price table above, and OEM branding is available from a few hundred pieces.
Yes. For RCInPower AOS Supernova 1404 4000KV Motors we can apply your logo, use a custom shell or housing colour, flash a locked firmware build and pack it in your retail packaging. Tooling-free branding normally starts around 100-500 pieces depending on the part; tooling-backed parts are quoted individually.
Air express (DHL / FedEx / UPS) is typically 4-7 working days door to door. Larger orders can move by sea or rail with DDP terms so the landed cost is fixed before dispatch.
Every unit is bench-tested and inspected before packing, and we can supply CE / FCC / RoHS documentation and a QC report with the shipment.
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