Notebook Cooling Pad with Built In Fans Micro Innovations NB360CP Retractable Notebook Cooler Pad General Features: Black color Two (2) built-in 60 mm (2.36-inch) fans USB powered Expandable/Retractable design with two sliding panels Power saving On/Off switch 5V DC power PC and Mac compatible Unit Dimensions: 12 x 7 x 1.25-inches (L x W x H, approximate) 12 x 11.75 x 1.25-inches (L x W x H, extended, approximate)