1. Material: Aluminum 2. Product dimension: 324x270x35 mm Gift box dimension: 36.8x29x5.5cm 3. Fit for laptop sizes: From 7" to 20" 4. Net weight:0.78KG/pc Net weight:1.08KG/pc(With colour box) 5. Fan size:70*70*15 MM(double fans) 6. Fan speed: 1500 +10%RPM 7. Noise: 25 DBA (Min) 8. With power on / off function 9.Five USB ports 10.Accessory: Connector