ErgoStand 13″-17 ” 1-Fan Notebook/Laptop Cooling pad | 1*140MM Fan – Black (NB339) FEATURES: ERGONOMIC DESIGN: With the sturdy engineering structure, NotePal ergostand offers 5 different height settings for laptop users better viewing angle, ease the pain of neck and wrist for heavy users Optimal cooling performance: Metal mesh surface with built-in 14cm silent fan ( without fan frame) performs ultimate thermal solution On-off switch adapts to various working environments Great compatibility: Two anti-slip probs with adjustable width setting design are specially for accommodating from netbook to large size notebook, including wide screen Easy front I/O port access for all types of adaptors Blue LED light with fan to feel cooler SPECIFICATIONS: DIMENSION: 370 x 265 x 58mm FAN DIMENSION: 1 x 140mm FAN SPEED: Adjustable; 750-4500RPM AIR FLOW: 0.45-1.35mmH2O AIR PRESSURE: 11 DBA (Min.) FAN NOISE: 0.4A (Max.) CURRENT: 5V DC