Characteristics and Interoperability RGB Lighting Mode 10 Spectrum Five Fans: Four 60mm tiny fans and one large 14cm fan provide a lot of airflow and effective heat dissipation. Five Actions Height Modification Control and adjustment of the fan Dual USB hub that frees up a USB port Extremely quiet design that won't interfere with your study or work composed of sustainable materials, has a long lifespan, and stable performance Compatible with most notebooks, including high-end models prolongs the life of your laptop or notebook and guards against overheating DESCRIPTION OF TECHNICAL DATA: Size of Main Fan: 140 mm x 1 px Measurements: 60 mm x 4 pieces Primary Fan Speed: 1400 RPM +/- 10% Mini Fan Speed: 2500 RPM +/- 10% DC 5V Rated Current 1.25 Amps Rated Voltage 6.3W of Rated Power Composition: Polyacrylamide Measurements: 400 by 280 by