Fetures: Using unique and universal clip to hold it, no limited by the thick or thin of memory With rotational 4cm fan and can change the position of left and right sides Not only for main body, can adjust the wind direction to cool down the temperateure of other component parts Uses aluminum extrusion design to offer more extensive heat dispersion area Extreme sports style with shinning LED to make it unique and characteristic Specifications: Overall dimensions: 117 x 73.5 x 11.5mm DC fan size: 40 x 40 x 10mm Base material: plastic, aluminum Bearing type: ever lubricate bearing type (long life bearing) Rated speed: 3,500 +/- 10%rpm Noise level: <16dBA Rated voltage: 12V Weight: 20g