Overview
The Futaba R404SBS-E is a lightweight, ultra-compact F-4G telemetry receiver engineered for high-level electric-powered RC racing. With support for SR (Super Response) mode and S.Bus2, its purpose-built for tight chassis and maximum control accuracy. This is Futabas most responsive indoor-optimized receiver to date.
Do not use with gas-powered (GP) vehicles
Only use SR-compatible digital servos in SR mode
Key Specifications
| Parameter | Value |
|---|---|
| Modulation System | F-4G (with SR mode support) |
| Channels | 4 |
| Output | S.Bus2 |
| Operating Voltage | DC 3.7V 7.4V |
| Size | 25.5 20.7 10.6 mm |
| Size (inch) | 1.00″ 0.81″ 0.42″ |
| Weight | 5.7g (0.2 oz) |
Notable Features
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Futabas Fastest Receiver: Leveraging F-4G and SR mode for unmatched control latency and stability.
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Featherweight Design: Weighs just 5.7g, ideal for high-end 1/10 EP touring cars with limited space.
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S.Bus2 Compatibility: Supports telemetry sensors and simplifies wiring for multi-servo setups.
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Voltage Flexibility: Operates from 3.7V to 7.4V, compatible with low-voltage LiPo packs.
Ideal For
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Indoor electric touring cars
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Pro-class EP racing setups requiring ultra-fast input response
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Chassis with space constraints and weight sensitivity
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