Sequre Blueson A2 is a powerful ESC with an excellent price/performance ratio. The ESC can handle current up to 70A and supports input from 2-8S LiPo batteries. This makes it suitable primarily for high-performance freestyle drones or 7-10" long-range builds. The ESC is equipped with a 32-bit processor and runs the modern AM32 firmware. It has mounting holes with a 30.5x30.5mm pattern and includes a built-in current sensor.