FrSky X4RSB 2.4Ghz 3/16ch SBUS Receiver (w/telemetry)


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Product Details

X4RSB has been replaced by us with SPD15. Smaller, more range and better support.

Please Note: All X4RSB sold after 22/11/16 now come with IPEX ANTENNA Connectors. When buying replacement antennas make sure you select correct one.

The X4R-SB is very similar to the D4R-II however has S/Bus output for up to 16 channels. In normal PWM mode it outputs 3 channels. Also is smart port enabled for a range of sensors.

Great for using with Pixhawk (supports max 8 channels) NAZA, KK2 (latest firmware must be loaded) can be used with Naze32 however a signal converter is required using a Rev5 board - Rev6 Naze32 now has built in signal inverter onboard

Please Note: Modifying this receiver from how it is originally supplied (removing casing/de-pinning etc) will void your warranty


  • RSSI (PWM) output
  • Lighter weight and physically smaller than D8R-II & D6FR
  • Two selectable failsafe setting options - native failsafe or user programmable failsafe
  • External analog telemetry port (AD2)
  • SB port is compatible with Futaba S.BUS servos and FrSky SBUS&CPPM compatible servos


  • Number of Channels: 3ch - Conventional Channels, 16ch with SBUS 
  • Operating Voltage Range: 4V~10V
  • Operating Current: 100mA
  • Operating Range: Full Range (>1.5km)
  • Dimension: 40x22.5x6mm
  • Weight: 5.8g


FrSky X-series modual (XJT, etc) & Taranis X9D in D16 Mode) 
*Note: Does not work with D-series module.

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