For 5 30mm Active Cooler PWM Fan, Passive Cooling Aluminum Fins Radiator,Efficient Heat Dissipation Enhance your 5's performance with the 30mm Active Cooler. This advanced cooling solution features a PWM-controlled fan that dynamically adjusts speed based on system temperature, ensuring optimal cooling without excessive noise. The high-quality aluminum fins provide superior passive cooling, effectively dissipating heat and maintaining system stability even under . Ideal for tech enthusiasts and professionals looking to push their 5 to new limits. Input voltage: 5V DC, provided via the four-pin fan header on the 5 Fan speed control: Tachometer PWM control Maximum air volume: 1.09 CFM Maximum fan speed: 8000 rpm +/- 15% Colour:A black Material:aluminum Due to different batches, there may be differences in product appearance and printed text, which not affect use Package Contents: 1 * Radiator 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.