TX400 433MHz Micro Radio 370-420MHz Transmitter Module

The TX400 Micro Module is based on the open-source ExpressLRS architecture designed for RC applications. Utilizing a custom RF chip along with redesigned circuitry and optimized firmware, it achieves high packet rates, ultra-low latency, and exceptional long-range performance. Operating in the 433 MHz band (370–420 MHz range), it provides superior signal diffraction, greater control range, and robust interference resistance.

Specifications

Packet Rate: D50Hz / 25Hz / 50Hz / 100Hz / 100Hz Full / 200Hz

Output Power: 100mW / 250mW / 500mW / 1000mW

Default Frequency Range: 370–420 MHz

Custom Frequency Range: Configurable between 370–560 MHz with a 20–60 MHz bandwidth

Power Consumption: 10V, 0.55A @ 1000mW, 200Hz, 1:128

Antenna Connector: SMA

Input Voltage: 7–13V

USB Port: Type-C

XT30 Input Voltage Range: 7–25V (2S–4S)

Fan Voltage: 5V