HobbyStar Heatsink With Top-Mounted Brushless Fan For 540/550 Motor, Black
A high-quality heatsink for all 540/550 motors, equipped with a 30x30mm fan for maximum cooling. Available with either a JR 2-pin plug or a BEC/JST style 2-pin plug. Fan is rated at 6V and operates on 4.8-7.4V. Power cable measures 100mm.