for 4 Aluminum Alloy Radiator Raspberry Pi4 Generation 4B Protective Case Cooling Fan

1. Compatible with 40P pins, directly plugged in and used.2. The switch controls the cooling plate fan. It is recommended to keep it on when using 4B.3. Increase the height difference between the radiator and the motherboard, expand the negative pressure area, and dissipate heat more effectively4. Increase the range of , heat dissipation, inhale at the bottom and exhaust at the side.5. The hydraulic bearing fan is used, which has lower operating noise and longer service life than ordinary fansName: for 4B cooling fanCompatible with: 4BTemperature range: -10+80CBearing structure: hydraulic bearingVoltage: DC 5VColour:blackMaterial:plasticPackage Contents:1 x for 4 cooling fanOnly 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.