The Deepcool Wind Pal Notebook cooler has dual 140mm fans and a mesh base which provide high cooling performance and optimal airflow. It features 4 USB ports, an anti slip buckle and adjustable fan speed for a balance between noise and cooling performance with a maximum airflow of 115CFM and varying speeds from 700RPM to 1200RPM while producing up to 21.5dB and 26.5dB respectively. Compatible with 17inch notebooks and below.