1.cyclone design, the effect of heat-dissipation is excellent

2. environment protected materials

3. compatible 12-15 inch laptop

4. high efficiency three quiet fans

5. innovation cyclone turbo wind hole design, completely disperse heat

6. Two port usb hub, usb powered.

7. non-slip design

8. Human engineering guide design, available for eyes and backbone

Specification:

1.Overall Size: 350*300*40mm         

2.Fans size: 70*70*10mm

3.Fan No.: 3

4.Rotate Speed: 1800-2200 RPM

5.Noise Level: 28dBA

6.Electric current : 0.19 A   

7.Voltage: 4.8-5V   

8.Bearing: Sleeve

9.Material:.plastic

10.Weight: 0.61KG

11.QTY/CTN: 20PCS

12.CTN size: 49*35*59cm

13.G.W/CTN: 18.5KG