Features: 1. One-Piece Cooling Fan For Orange Pi5plus, Low Noise, High , High Cooling Efficiency.2. Aluminum Heat Sink, High Cooling Efficiency.3. Pc Material Fan, Safe And Environmentally Friendly, Good Heat Resistance4. Oil-Containing Bearings, Smooth Running, Low Noise.5. Convenient And Simple InstallationDescription: Bearing Type: Oil-ContainingRated Voltage: DC 5VWorking Voltage: DC 4.5V-5.5VStarting Voltage: DC3V (On/Off)Air Volume: 5.22CFM(REF)Wind Pressure: 2.70mmH20(REF)Speed: 4900 RPM15%Noise: 21.44 dB(A)Note: Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Usesize: about 45 x 49 x 18mmMaterial: PC+aluminumcolour: As shownPackage Contents: 1 x Motherboard Heat SinksOnly 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.