Here are the key Features of this ESC:

Current Rating: The ESC has a continuous current rating of 45A, meaning each electronic speed controller in the 4-in-1 package can handle a continuous current flow of up to 45 amps. This is an important specification, as it determines the maximum current the ESC can handle without overheating.

BLHeli_S Firmware: The use of BLHeli_S firmware indicates that this ESC is part of the BLHeli_S family, a popular firmware for electronic speed controllers in the drone and RC (radio-controlled) community. BLHeli_S firmware provides various features, including motor braking, active freewheeling, and improved response times.

Dshot600 Protocol: The Dshot600 protocol is a communication protocol used between the flight controller and the ESC. It's a digital communication protocol that provides a faster and more reliable signal compared to traditional analog protocols.

Voltage Input Range: The ESC is designed to handle a voltage input range of 3-6S LiPo batteries. This makes it compatible with a variety of battery configurations, from 3 to 6 cells in series.

Brushless Motor Support: The ESC is specifically designed for use with brushless motors commonly used in multirotor aircraft. Brushless motors provide higher efficiency and performance compared to brushed motors.

4-in-1 Design: The "4-in-1" design means that four individual ESCs are integrated into a single board. This configuration simplifies wiring, reduces the overall weight, and streamlines the installation process in a drone.