This is the Hobbywing Platinum Pro V4.1 200HV ESC, for use with 700-800 sized Helicopters.

One of a Kind Design
The elegant case is made from aluminum alloy material. Each cooling slot and its fin were carefully designed and arranged, and the case has gone through oxidation, coloring and edge-highlighting.

Innovative Heat Dissipation Structure
Power board dissipates heat via the aluminum upper & medial cases. Control board dissipates heat via venting holes in the medial case. BEC circuit board dissipates heat via the aluminum lower case.

Excellent Motor Speed Governing
The high performance 32-bit processor, combined with advanced algorithm, makes the motor speed-governing excellent for different conditions. With the adjustable sensitivity of speed-governing, every pilot can find the most suitable settings for his helicopter.

Super Soft Start-Up
The Platinum HV200A makes the motor start extremely soft and avoids tail-drift issues. The start-up time is adjustable within 8 to 25 seconds. This will definitely create a perfect starting point for every flight.

Super Backflow-Proof Switch-mode BEC
The built-in switch-mode BEC with continuously adjustable output voltage range from 5V to 8V (step: 0.1V) supports connecting a 2S backup battery (to the connection) in parallel for improving the safety and reliability, its backflow-proof circuit prevents the voltage (which is higher than the BEC voltage) from the servo or backup battery from flowing back to the BEC. The addition of buffer enhances the output of high peak current to make the servo response more precise and quick.

Great Current Endurance
A high-quality and high-voltage MOSFET with a great current endurance guarantees the ESC's safety especially in a extremely high power demanding situation.

Built-in Sparkproof Circuit
Built-in sparkproof circuit effectively eliminates sparks produced at the "powering-on" moment and prolongs the connectors lifespan.

Specifications:
Main Applications: 700-800 Class Helis
Governor: Internal
Built-in BEC: Yes, Adjustable; 5-8V (10A continuous; 25A burst current)
Continuous Current: 200A
Cell Count: 6-14S
Case: Aluminum Alloy Shell
Programming:
Peak Current: 300A
Weight: 325g
Dimensions: 106x50x34mm
DEO Technology: Yes
Spark-Proof: Yes
Programming: Separate port for ESC programming (this port is also the FAN port)
Parameter: You can program your ESC with a LCD program box and a programming cable or an Android/iOS smartphone, a WiFi Express