1. Coolcold 5v Speed Control Version Gaming Laptop Cooler Notebook Stand,spec: Red Basic Model 2. Symphony Editionseven Color Editionbasic Edition: 3. Fan Speed: 1600-2500rpm1600-2500rpm2600+-rpm 4. Power Supply: 5v Usb Power Supply 5. Interface: Dual Usb Interface 6. Lighting: 12 Kinds Of Rgb Lights (lights Can Be Adjusted) 7 Kinds Of Rgb Lights (lights Are Fixed) No Lights 7. Height: 7 Levels Of Height Adjustable 8. Wind Speed Adjustment Method: Dial Adjustment 9. Current Value: 1a+- 10. Fan Speed: 1st Gear 1600+-rpm, 2nd Gear 2100+-rpm, 3rd Gear 2500+-rpm 11. Product Size: 405 X 285 X 43mm 12. Net Weight: 1065 Grams 13. Fan Size: Less Than Or Equal To 140 X 140 X 20 (1pcs), Less Than Or Equal To 70 X 70 X 15 (4pcs) 14. Features: 15. 5-core Air Duct Direct Access, Highly Silent Design 16. Compatible With Large Area And Full Size, Compatible With Laptops Within 17 Inches 17. Ergonomic 7-level Height Adjustable To Relieve Shoulder Discomfort 18. Retractable Mobile Phone Holder, Can Be Hung Left And Right 19. Anti-fall Reinforced Plastic, Can Accommodate Non-slip Baffle 20. It Adopts Dual Usb Interface Output Design, Which Can Be Connected To Other Devices Without Occupying The Laptop Interface