Feature: 1. Premium Material: This 40A brushless ESC is made of silicone and copper, which dissipates heat well and can work for a long time. 2. High Stability: Brushless ESC's multilayer PCB supplies power to the MCU separately to improve motor stability and durability. 3. Protection Function: The RC Brushless ESC has overheat protection and low battery protection to prevent damage to the ESC. 4. High Accuracy: Accurate speed control, automatic forward and reverse control, no need to change the connection sequence of the motor and the ESC. 5. Scope of Application: The brushless ESC is a multi axes ESC, suitable for KT board fixed wing aircraft. Specification: Item Type: 40A Brushless ESC Material: Silicone, Copper Size: Approx. 26 x 46 x 10mm/1.02 x 1.81 x 0.39in Output Capacity: Continuous Current 30A, Short Term Current 40A (not Less Than 10 Seconds) Power Input: 6V-12V (2-3 Cell Lithium Battery Pack or 5-10 Cell NiMH/NiCD Battery Pack) BEC Output: 2A 5V Applicable: KT Board Fixed Wing Aircraft. Package List: 1 x Brushless ESC Note: 1. Please allow 1‑3mm/0.04‑0.12in error due to manual measurement. Make sure you don't mind before ordering.2. Due to different shooting lights, as well as differences between monitors, the pictures may not reflect the actual color of the object. Make sure you don't mind before ordering.