1. Argon THRML Active Cooler fits on top of the for Raspberry Pi 5 to keep it cool while keeping the small form factor 2. Maximize heat dissipation away from the for Raspberry Pi 5 with the large aluminum heatsink 3. Tunnel Type Radiator heatsink design to maximize synergy with the active cooling from the 30mm PWM blower fan 4. Integrated 30mm PWM blower fan helps cool down the for Raspberry Pi 5 faster 5. Quick snap on and push pins for easy mounting on for Raspberry Pi 5 Input voltage:5V DC supplied via four-pin fan header on for Raspberry Pi 5 Fan speed control:Pulse width modulation control with tachometer Maximum airflow:1.09 CFM Maximum fan speed:8000 RPM +/- 15% Colour:Black/Silver Material:Aluminum alloy Package Contents: 1x Active Cooler Only 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.