Special fan for CM4, low noise, strong practicability, with Thermal pad Based 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 series Simple operation, convenient and quick installation Product parameters: Product name: cooling fan Model: CM4-FAN-3007 Applicable model: for CM4 dedicated fan Purpose: cooling fan Size:54 x 39 x 13mm Note: CM4 Motherboard Not Included Colour:black Material: ABS Package Contents: 1 x CM4 Cooling Fan 1 x Screw Pack 1 x Screwdriver 4 x Thermal pad Only 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.