What type of motor is used inside the laptop's cooling base

Small permanent magnet DC brushless axial fan. With the continuous development of science and technology, especially the sensing technology, integrated circuit technology innovation, novel, multi-functional small permanent magnet DC brushless fan, widely used in electronic computers and peripheral equipment, office automation equipment, electronic instruments, air purification and medical equipment, and its main role is to ventilate and heat dissipation. Brushless motor is a small mechatronic product that uses electronic commutation to replace the commutator of traditional DC motor. The small permanent magnet DC brushless fan for the cooling base of the laptop usually gets its working power from the USB port of the laptop.