<ul><li>40A OPTO 2-6S Brushless electronic speed controller.</li><li>Highly intelligent, adaptive ability, extremely easy to use</li><li>Continuous Current: 40A Weight: 33.2g</li><li>Specifically optimized firmware ESC, the ESC has a very good compatibility</li><li>For F450 450mm F550 S500 ZD550 RC Helicopter Quadcopter</li></ul><br><br>

Readytosky 40A ESC OPTO 2-6S Brushless ESC Electronic Speed Controller for F450 450mm F550 S500 ZD550 RC Helicopter Quadcopter(4PCS)

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