External Vacuum Portable Notebook Laptop Cooler

1.100% new and hight quality
2.The mini USB cooling fan is high speed ,low noisy
3.With a large range to cool
4.Fixed convenient
5.Infinite speed switch can adjust the air volume
Specifications:
Product Dimensions: 175x86x52mm
Fan Size: 75x75x25mm
Rotational speed: 1500-3000±10%RPM
Air flow: 75.35CFM
Rated Speed: 1350rpm±10%
Air flow:109.3CFM±10%

Rated Voltage: 5V DC
Current: 0.4±10%
Power cord length:60cm
Bearing Type: Dual Ball Bearing
Noise: 15dBA (Min.)
Gross Weight: 245g

User tips:

Begin to use, in order to fast cooling, open to the largest (3000 RPM), temperature drop down, About 15 minutes, transferred to the minimum (1500 RPM) remains constant, so that we can keep in a reasonable working temperature, and can prolong the service life and lower noise.

Common problem:

Q: power supply way? The power cord length?

A: use USB 5 v power supply, wire about 60 cm long.

Q: this product has several silica gel set?

A: in order to meet the requirements of different computers, configuration of four different sizes of silicone sets