Overview The Powerhobby 40x40x10mm High Speed RC Cooling Fan is a high-output motor and ESC cooling solution for 1/8 and 1/10 RC vehicles. Standard 40mm size makes it compatible with most ESC fan mounts and motor heat sinks, delivering reliable airflow under heavy load. Key Features 40x40x10mm standard size High-RPM cooling output Compatible with most ESC fan mounts Reliable airflow under load Performance Benefits Effective cooling for high-power motors/ESCs Prevents thermal cutouts Easy installation Standard size — fits many systems Fitment Compatible RC vehicles: Universal fit – all RC vehicles. Technical Specs Size: 40 x 40 x 10mm Type: High-Speed Cooling Fan What's Included (1) Powerhobby 40mm High-Speed RC Cooling Fan Summary The Powerhobby 40mm High-Speed Cooling Fan is a reliable, standard-size cooling upgrade for any 1/8 or 1/10 motor/ESC application.