ZALMAN Notebook Cooler ZM-NC2000 Black Accessory Type: Cooler Color: Black Specifications: Dimensions: 12.52 x 15.75 x 1.67 Weight: 3.22 lbs. Base Material: Pure Aluminum, ABS Noise: 18.0-25.5 dBA ± 10 % Input Voltage: 5V (Connects with Notebook USB Port) Color: Black Fan Type: Dual Centrifugal Fan Quantity: Two Bearing Type: Hypro Bearing RPM: 1100-1500 RPM ± 10 %