Readytosky 40A ESC OPTO 2-6S Brushless ESC Electronic Speed Controller For F450 450mm F550 S500 ZD550 RC Helicopter Quadcopter 1x ESC with Wires

ESC Specification:

Li-ion/Li0poly:2-6S

Size: about 6.8×2.4cm(ESC with Cable); about 7.2×2.4cm (ESC with banana connector)

Weight:about 33.2g(with cable);

Note: ThisESC is not able to flash the firmware.

1pcs or 2pcs or 4pcs*40AESC( send it as your choice)

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