This simple notebook cooler can help to keep your laptop running at peak performance! The internal heat generated by laptop components can weaken system performance and cause instability. By keeping the laptop cooler, you can help to ensure that your notebook endures the performance you demand. Designed to work with any laptop computer size, the cooler features four 60mm fans that pull heat away from the base of the laptop, extracting the hot air for better circulation and dissipation within the computer casing. NBCOOLER features variable speed settings that let you adjust the fan speeds to suit the amount of heat coming from the laptop, up to a maximum airflow rating of 40 CFM.