This portable model includes two built-in cooling fans for reducing the internal heat of hot-running notebooks. Fan Specifications Bearing type: sleeve, MTBF: 20,000 hours, Noise level (in decibels): 25dB

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• Compact size offers easier portability while traveling
• Heavy-duty construction withstands the constant pressure of heavy notebooks
• USB-powered for use with any computer USB port
• 2 built-in cooling fans dissipate heat away from the bottom of your notebook and cool down the overall temperature of your system