Special fan for CM4, low noise, strong practicability, with Thermal padBased on the design of the CM4 core board, it matches the size and positioning holes of the CM4, and quickly dissipates heat.You can install a cooling fan on the cover, which allows for optimal heat dissipation and prolongs the lifespan of using the .Suitable for CM4 motherboard seriesSimple operation, convenient and quick installationProduct parameters:Product name: cooling fanModel: CM4-FAN-3007Applicable model: for CM4 dedicated fanPurpose: cooling fanSize:54 x 39 x 13mmNote: CM4 Motherboard Not IncludedColour:blackMaterial: ABSPackage Contents:1 x CM4 Cooling Fan1 x Screw Pack1 x Screwdriver4 x Thermal padOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.