Dealikee 6pcs Mini Cooling Fan for Raspberry Pi 5/4, 30x30x7mm, Quiet, 30000hrs Life, 3.3V/5V DC, 6000rpm, 5m/h Airflow, Suitable for Raspberry Pi 5/4/3+/3/2/B+/Zero/Zero W, Robot Project

• Super Quiet: Cooling fan run smoothly(15.92dBA), Long life (30,000 hours) keep CPU safe without overheating.
• Unique Terminal Interface: Come with two terminals, Their connectors are separated, One-to-Two interface, you can choose 3.3V or 5V. According to the voltage requirements in accordance with your needs to choose to use.
• Perfect Cooling Tool: Offer for Raspberry Pi or other experimental tools to quickly dissipate heat and will extend the working life of your development boards!
• Installation Screws Included: Don't need to purchase screws by yourself. Intimate service, easy to install!
• Not only for Raspberry Pi but also for cooling of a desert traversing robot project. It just another addition to them fleet. Will works wonderfully!

Specifications: Fan Dimension: 30x30x7.5 mm (LxWxH) Wire Length: 2.6 inches (66mm) Connector: One-to-Two pin Color: Black Operating Voltage: DC 3.3V - 5V Start up Voltage: DC 3V Noise Level: 15.92dBA Life Time: 30,000 hours Bearing Type: Sleeve Connector: 2 pin Speed: 6000RP±10% Airflow: 5m/h Noise Level: 18db±10% Suitable for Raspberry Pi B / Raspberry Pi B+ / Raspberry Pi A+ / Raspberry Pi 2 and Pi 3 Model B+ / Raspberry Pi 3 / Raspberry Pi 4/ Pi Zero/Zero W Package Included: 6 x Cooling Fan 24 x Nuts 24 x Screw