Review on 🌬️ Noctua 5V NF-A14 Premium Quiet Fan with USB Power Adaptor Cable, 3-Pin Version (140mm, Brown) by Doug Friedman

I received this fan a few days ago and tested it under different conditions. I plugged it into multiple USB sources (USB battery jacks, computer USB ports, AC to USB adapters, and a 12V USB car adapter) for a few hours. In all cases, my fan worked exactly as described by Noctua. It's quiet and moves air as per its specs. This fan ran for almost 12 hours on one of those little lipstick sized USB lithium batteries. I am so excited that I have ordered another fan and will test it extensively when it arrives. UPDATE: My second fan arrived way ahead of schedule! I ran some of the same tests on it as I did on my first fan and got the same impressive results. I don't have a professional acoustics lab, but my rough sound measurements show that the noise levels are within specification. There are definitely no jet engines here.