Review on 🌀 AC Infinity MULTIFAN Mini: Compact 40mm x 20mm USB Fan for VR Gear, Aquarium, Roku, Router, Raspberry Pi, Cosplay, Helmet Cooling Ventilation - UL-Certified by Masud Taylor

The noise floor would have been better if AC's Andrew hadn't stated it was 10dB at medium to low volume. 18dB is probably fine for high-speed work, but I shouldn't have taken out my SP meter. It was too loud. I use it in a 0.5 cu/ft case for Raspberry Pi. It cools very well and keeps the RPI at around 50 degrees Celsius. At any speed, I can hear it from 2.5 to 4 meters away, even with the music on at an average volume. I had high hopes for this fan but it is louder than any of my PLUSPOE PCs sold at Revain and is rated at 26dB, has a very conservative rating and is much quieter than the AC Infinity. I bought both. PLUSPOE is integrated into the music server.