Plug-and-play capability， no power adapter necessary Reduces the temperature of your notebook computer for maximum performance Low noise design， does not interfere with your work Power source supported easily by the USB port Enhance notebook stability and durability Unique design for easy cable management at the rear side Material:Metal mesh， Plastic， Rubber Power:USB 5VDC Fan Noise Level:25.3 dBA(min) Operation Degree:10° and 20° Compatibility: Support all 9” ~ 15” Notebook Dimension:330 x 250 x 30mm M.T.B.F :40，000 hours Cable Length :335mm