Review on 💨 Efficient Cooling Solution: Heatsink Fan for DaHua DVR, HDCVI Camera & 5V Motherboard - 2Wire 2Pin Cooler Fan by Tim Wadman

Same as others. Tried both. The first fan was incredibly loud when mounted on a perfectly flat CCTV motherboard. I removed that one and replaced it with my second (identical) one. It was noisy too. I broke it to make it quieter. I installed the first one and ran another 10 minutes or so and eventually it settled down. Cheap Chinese junk. Nobody can make an installation worth? This was the only brand I could find in this size. Really disappointed. I'm sure it will get loud sooner or later. 0 confidence in longevity.