Futaba R404SBS-E F-4G 4-Channel SR Receiver, 3.7–7.4V, 5.7g, S.Bus2, for EP RC Racing Cars

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, it’s purpose-built for tight chassis and maximum control accuracy. This is Futaba’s 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

Notable Features

• Futaba’s Fastest Receiver: Leveraging F-4G and SR mode for unmatched control latency and stability.

• Featherweight Design: Weighs just 5.7g, ideal for high-end 1/10 EP touring cars with limited space.

• S.Bus2 Compatibility: Supports telemetry sensors and simplifies wiring for multi-servo setups.

• Voltage Flexibility: Operates from 3.7V to 7.4V, compatible with low-voltage LiPo packs.

Ideal For

• Indoor electric touring cars

• Pro-class EP racing setups requiring ultra-fast input response

• Chassis with space constraints and weight sensitivity