Features: Height-adjustable notebook cooler For notebooks up to 17" Ergonomic design, adjustable up to 45 degrees for the optimal viewing angle Screen can be placed at eye level and thus avoids shoulder and neck problems Quiet fan protects your notebook from overheating Includes extra USB port and on /Off switch for the fansLED backlightingSpecificaties:Material: metal and plasticCooling fans: 1 pc 150 x x150 x 20 mm, 800 ... 1500 RPM, airflow at least 20 CFM (± 10 %), noise 10 dBAHeight adjustment: 5 steps (5/20/30/40/45 degrees)USB cable length: 0.5 mDimensions (LxWxH): 370 x 265 x 33 mm (folded)Power consumption: 5 V DC up to 0.35 ANet weight: 0.66 kgSystemeisen:Free USB port for fan power