This EMAX ESC 30A, Simon series. This ESC (electronic speed controller) firmware is optimized for best performance of brushless motor. It has over-heat protection and self checking function.
Current : 30 A
Burst Current: 40A up to 10 Secs.
BEC: 2A / 5V (Linear mode).
Size: 45mm (L) * 24mm (W) * 11mm (H).