RadioMaster 2.4GHz RM4IN1 Multi Protocol Module FPV TX Transmitter Connector Long Range Radio for Racing Drone

RadioMaster 2.4GHz RM4IN1 Multi Protocol Module FPV TX Transmitter Connector Long Range Radio for Racing Drone
Product Highlights

1. Integrated with Four RF Chips
   Equipped with CC2500 + NRF24L01 + A7105 + CYRF6936 RF chips, supporting 70+ mainstream radio frequency protocols for broad device compatibility.

2. Universal Compatibility
   Supports a wide range of popular brands and protocols, including FrSky, DSM2/DSMX, all Flysky series, SFHSS, HiTec, HoTT, Radiolink, OMP, and more.

3. 100mW (+20dBm) High-Power Transmission
   Provides reliable long-range signal transmission on the legal 2.4GHz ISM frequency band, designed for aircraft, cars, boats, and other RC models.

4. Dual Nano & JR Adapter Mounts
   Features both Nano and JR module adapter bases, fully compatible with ZORRO, TX12, TX16S MKII, and all RadioMaster transmitters.

5. Built-in Wireless Trainer Link
   Enables wireless trainer mode between two transmitters via RM4IN1, eliminating the need for traditional trainer cables.

6. Wide DC Input Range & Low Power Consumption
   Supports DC 4.5–8.4V input with an ultra-low operating current of approximately 100mA, making it highly efficient and battery-friendly for radio transmitters.

7. Stable Transmission with Metal Heat Sink Housing
   Features a durable metal heat-dissipation enclosure for improved stability and reliability.
   A USB Type-C port allows convenient firmware updates and flashing.

8. Ultra-Lightweight & Compact Design
   Weighing only 30g (excluding antenna), with a compact structure that keeps the transmitter screen unobstructed.

9. Detachable SMA Omnidirectional Antenna
   Equipped with a removable SMA omnidirectional antenna, compatible with a wide range of high-gain 2.4GHz antennas.

10. Native OpenTX / EdgeTX Support
    Fully integrated with OpenTX and EdgeTX, allowing direct protocol switching through the transmitter menu.