1. ABS/Aluminum material
2.USB interface for plug and play 
3. big cooling fan built inside
4. Ultra-low working noise within  35dB  controlled 
5. Good quality motor keep long using life of the device
6. Appliancable for all notebooks
7. Provide free sample for checking the quality.
8. Multi-color options: Blue ,Black, Red.
9. Accept customzing for color and logo prininting when quantity reach 5000pcs/lot
10. If special structure based on current product mold set requested, it is acceptable to have discuss for mold modification to meet the demands.
11. we are source factory bulk selling directly, have big advantages no matter on price, quality control and service...

More questions about product and our factory, welcome to contact me anytime