Specification

1.1 Output: Continuous 40A, Burst 55A up to 10 seconds.
1.2 Input Voltage: 2-3 cells lithium battery or 5-9 cells NiCd/NiMh battery.
1.3 BEC Mode: 5V @ 3A (Linear mode)
1.4 Refresh rate?50Hz?432Hz
1.5 Max Speed: 210000rpm for 2 Poles BLM, 70000rpm for 6 poles BLM, 35000rpm for 12 poles BLM. (BLM = BrushLess Motor)
1.6 Size: 68mm * 25mm * 8mm

Brand：Hobbywing

Hobbywing Skywalker 40A 2-4S Brushless ESC Electric Speed Controller with UBEC