Two coresIndustrial-grade turbofan(5000RPM)+ combined sealed foam, creating a powerful cooling effect, and it is 360-degree undifferentiated cooling, no matter where the cooling hole of your laptop is, the same cooling effect can be obtained Infinitely variable speedThe speed adjustment range of the fan is 0-5000 Rpm, which can meet different cooling needs. It can be adjusted to the best speed for you in office, game, and standby mode.