1. For raspberry pie CM4 special fan, new high-quality 3007 low-noise cooling fan2. Low noise, with heat conduction pad, 12V supply3. For Compute Module 4 CM4 special metal cooling fan, corrosion resistant/oxidation resistant.4. The installation positioning hole is accurate, the size matches with CM4, and the heat dissipation is fast5. The design is reasonable and does not affect the antenna installation.3007-12V parameters:Version: 3007-12VElectrical parameters: 1.62W (12V, 0.135 0.02A)Rated speed: 800010% RPMGeneral: fan embedded, PWM speed regulationInterface: 4-wire PWM speed regulating fan interfaceWire length: 9010mmSize: 54 x 39 x 13mmcolor:BlackMaterial:ABSPackage Contents:1 x Cooling fan1 x Screw package and thermal padOnly the above package content, other products are not included.Note: Light reflection 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.