DSMX SRXL2 Serial Micro Receiver (SPM4650)

DSMX SRXL2 Serial Micro Receiver is a compact Spektrum receiver that uses the SRXL2 protocol to deliver a fast, data-rich serial link between the transmitter and flight controller, supporting up to 20 channels and bi-directional telemetry that can be configured from the radio.

Designed for micro builds, it weighs about 1.4 grams and features dual diversity antennas for reliable reception in challenging installations. It accepts a wide voltage range from 3.3 to 8.4 volts and includes a built-in bind button for easy pairing. The SRXL2 link enables fly-by telemetry and transmitter-based setup, though SRXL2 is not backward compatible with the older SRXL protocol, and some VTOL models may not be compatible.