Specifications: SPECIFICATIONS Cooler Outline Dimension: 51 x 51 x 29 mm Heat Sink Dimension: 49 x 49 x 13 mm Material: Aluminum Fan Dimension: 51 x 51 x 15 mm Bearing Type: Ball bearing Rated Voltage: 12 V DC Speed: 4500 rpm +/- 10% Noise Level: 35 dBA +/- 10% Air Delivery: 2.85 CFM +/- 10%