The RCX 40A Electronic Speed Controller is one of the best ESC. It functions and performs as good as the famous HobbyWing 40A but less in pricing. The continuous high output current can supply stable current to both Receiver and Brushless Motor for aggressive 3D flying. Cooling architecture of RCX 40A can also maximum the life cycle in a low temperature while flying. So, it is really a great ESC for 450 class helicopters.

• Compatible with Lithium and Nickel battery types.(Lithium-lon/Lithium-polymer or Nickel Metal Hydride / Cadmium)
  
• Extreme low output resistance, super current endurance.
  
• Multiple protection features:low-voltage cut_off protection / throttle signal loss protection.
  
• 3 Start modes:Normal/Soft/Super-soft, compatible with fixed-wing aircraft and helicopter.
  
• Throttle range can be configured to be compatible with all transmittles currently available on market.
  
• Smooth,linear and precise throttle response.
  
• Separate Voltage regulator IC for microprocessor, providing good anti-jamming capability.
  
• Supported motor speed (Maximum):210000RPM(2 poles), 70000 RPM (6 poles),35000RPM(12 poles).
  
• Our pocket-sized Program card can be purchased separately for extremely easily programming the ESC at the field.
  
• With a program card, you can activate the music playing function of the ESC, and totally there are 15 songs can be selected

• Continous Current: 40A
  
• Brust Current: 55A
  
• BEC Mode: Switching
  
• BEC Output: 5V / 3A (Max 4 Standard Micro Servos)
  
• BEC Output Capacity: 2S-4S Li-PO: 5 micro servos (Max) / 5S Li-PO : 4 micro servos (Max)
  
• Battery Cell Li-PO: 2-3 cell / NiMH or NiCd : 5-15
  
• Weight: ~35g
  
• Dimension: ~55 x 28 x 12 mm
  

• All 300-450 Class Helicopters such as:
  
• RCX 450 Helicopter
  
• Align Trex 450 Helicopter
  
• ESKY Belt-CP / Belt-CP V2 Helicopter
  
• ESKY Honey Bee King 2 / Honey Bee King 3 Helicopter
  
• KDS 450C/S/SV/Q

• 1 x RCX 40A ESC Brushless Speed Controller (Programmable / H Series)

** Click here to download the English manual.