This is the Kontronik Kosmik Cool 200HV Brushless ESC. The COOL KOSMIK shares the features and functions of the standard Kosmik ESC's, but add's an integrated heat sink with an active cooling fan. The integrated heat sink cooling plate keeps temps in check and looks stunning, while the active cooling fan helps to keep the air flowing in low airflow situations. COOL KOSMIK, a design that keeps its cool in the most demanding situations.