Hobbywing Super Capacitors Module for 1/10 Scale Car ESC Super low impedance. Low temperature in working state. Reduces the RF interference to make the RC model more reliable, Improves the burst power when the motor starts to run. Suitable for the following ESC: XERUN-120A-SD, XERUN-60A-SD, XTREME STOCK, JUSTOCK EZRUN-25A-L, EZRUN-35A, EZRUN-60A