1. Material: metal, engineering plastic
2. Applicable size: laptops within 18 inches
3. Power: 4.5W
4. Noise: 21-23dBA
5. Dual USB interface design, easy to use
6. Fan speed knob, freely adjustable
7. Six powerful fans design, fast and lasting heat dissipation
8. Large area metal mesh reduces wind resistance and has good heat dissipation effect
9. Five-speed height adjustment, more comfortable and convenient to use
10. Baffle design to prevent the computer from slipping
11. Product size: 39 x 26 x 4 cm