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CROSSOVER-RX Ma-RX42E Series Built-in brushless ESC/GYRO(option)/SR3X(option)/5CH MicroRX/TELEM

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Do you need the GYRO function
Do you need a Compiler
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    Ma-RX42E-X V3.0 is an ultra-micro receiver that integrates 5A/1S brushless ESC. Its volume is only 22.5*12.0*6.5mm. The built-in DCDC boost circuit provides excellent low-voltage performance for the receiver. A total of 6 versions are currently available.

    Ma-RX42E-X-G V3.0 is an ultra-micro receiver that integrates 5A/1S brushless ESC and SR3X system. Its volume is only 22.5*12.0*6.5mm. The built-in DCDC boost circuit provides excellent low-voltage performance for the receiver. A total of 6 versions are currently available.


Ultra-small size: 22.5*12.0*6.5mm (without antenna);

Ultra-light weight: 1.35g (not including power cord and motor terminals);

Working voltage: 3.2~4.5V;

Built-in 4.5V boost circuit;

Support double aileron servo mode (reverse phase, need to use GUI setting);

Built-in 5A/1S brushless ESC;

Excellent low-voltage working performance;

Auto Binding;

D, F2, A, versions support TELEM function;

1.00mm 3P steering gear interface;

Support online firmware upgrade;

Support GUI setting function;

A2-G,D-G,S-G,F1-G,F2-G Supports SR3X 3-AXIS function(GYRO function)(three working modes: OFF, Low sensitivity, High sensitivity)

Connection Diagram

  Double-Aileron Mode 

  Double-aileron mode is developed for those model airplanes using double ailerons. This function can simplify servo wiring connection and transmitter set up. The user can set the M.BUS port on the GUI as the AIL channel of the inverted output, then the double aileron servo mode can be turned on. 

  Auto Binding

  As it is difficult to reach the binding button when the receiver has been installed inside the plane, we developed self-binding function, it works like this: The receiver will enter binding mode automatically after powered and no signal for 15 seconds (slow flashing LED light turns to fast flashing), then complete the binding operation according to your transmitter binding manual.


  TELEM Function (only D, F2, A, H version support)

  TELEM function is useful on monitoring battery voltage, receiver working voltage and its signal strength as well as its working temperature in real time, through which customer can get working state of receiver and battery discharging state under control, so flying out of control range and over discharging will rarely happen ( for brushless motor rotation speed or flight height monitoring, customer needs to choose a more advanced receiver)

NOTE: The effective control range of TELEM function depends on transmitter, it is possible that this would happen: the working range of the receiver is far more than TELEM function effective range, it is normal and alright!

  SR3X System 

  The SR3X system is an auxiliary flight system developed for RC airplane. It can help beginners better control the RC airplane., and can also help master pilots better stabilize the flight attitude.

  The SR3X system is divided into three working modes: off, low-sensitivity working mode, and high-sensitivity working mode. The fifth channel (set to the third switch) is used to determine the working mode of the SR3X. The blue LED on the Ma-RX42E-X-G is used to indicate the SR3X working mode:

1) LED OFF means the SR3X system is off; .

2) LED ON means the SR3X system is working in low-sensitivity mode;

3) LED Flashing means the SR3X system is working in the high-sensitivity mode.

   M.BUS Interface:

  M.BUS interface is a multi-function interface: 1) FW upgrade/Function setting interface; 2) Output channel signal; 3) Output SBUS signal; 4) Connect other sensors (under development);

  Note: It is forbidden to connect the battery to the receiver when the PC is connected to the M.BUS interface.

  How to connect RX to GUI software(Download link

  The user needs a USB programmer (USB MX-PG02, when used on Ma-RX42E-X V3.0, the switch on the programmer is set to the I position) before using the GUI software to configure the receiver function or upgrade the firmware. Connect one end of the USB programmer to the M.BUS port of the receiver, and the other end to the PC. After opening the GUI software, select the correct port, click "Connect", and then the various configurable function modules on the receiver will be loaded and displayed. The current setting information of the machine.

MA-RX42E-X V3.0 series receivers have the following 10 versions

Mi-LSM1300 Micro Digital Servo

size:18.1*15.2*7.8 mm;

Range:8 mm;

Weight:1.1 g(not including wires)

Torque:35 g/4.2 V;

Speed:0.12 s/4.2 V;

Working voltage:3.5~4.2 V

Connector: mini JST 1.0mm or mini JST 1.25mm

Mi-S1700 Micro Digital Servo

size:18.2*13.5*6.2 mm;

Weight: 1.7g(not including wires)

Working voltage:3.2~4.2V

Operatingspeed(at noload):0.055±0.005sec/60°

Runningcurrent (at noload):75±10mA

Stalltorque(at locked):0.07±

Stall current(atlocked):250±30mA

Idlecurrent(at stopped):2±1mA


Connector: mini JST 1.0mm

Mi-S1900 Micro Digital Servo

size:22.5*13.45*6.2 mm;

Weight: 1.9g(not including wires)

Working voltage:2.8~4.2V

Operatingspeed(at noload):0.05±0.01sec/60°(3.7V) ~0.04±0.01sec/60°(4.2V)

Running current (at no load):65±10mA(3.7V) ~70±10mA(4.2V)

Stalltorque(at locked):0.50±0.05kg·cm(3.7V)~0.55±0.05kg·cm(4.2V)

Stall current (at locked):450±50mA(3.7V) ~500±50mA(4.2V)

Idle current (at stopped):2±1mA


Connector: mini JST 1.0mm

Mi-S2200 Micro Digital Servo

size:25.6*20.16*8.47 mm;

Weight: 2.0g(not including wires)

Working voltage:2.8~4.2V

Operatingspeed(at noload):0.07±0.01sec/60°

Running current (at no load):60±10mA

Stalltorque(at locked):0.15±0.01kgf·cm

Stall current (at locked):280±20mA

Idle current (at stopped):2±1mA

Institutions limit Angle:200°±2°

Connector: mini JST 1.0mm


  All items will be checked carefully before shipment.We will pack and ship the parcel with 5 day. ( There will be delay when holidays. )
  Tracking information is available within 1-4 days after shipment. We will ship via SF Express or FedEx & UPS. Usually, the shipping time is 7-45 business days. If you can't receive your item, please feel free to contact me for help.


  1)The Ma-RX42E series RX are Not a copy or fake products of other companies; ​
  2)MXO-RF and CROSSOVER-RX brand guaranteed its high quality and continuous technical service.

50 Items

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MXL-RX62E Series Receivers/linear servos/Built-in brushless ESC/TELEM/SR3X(option)/GYRO(option)/5CH/mini RC model aircrafts


    MXL-RX62E-X V3.1 series receivers are developed on the basis of MXL-RX62H-X V3.0, on which are integrated with 5A/1S brushless ESC, the length of the board is only 8.2mm longer than that of MXL-RX62H board, in this case, MXL-RX62E-X receiver also can be installed on micro model airplanes very easily and bring customer brushless flight fun. Besides, some versions of MXL-RX62E-X supports TELEM function. We can supply 4 versions in total at present.