GDSTIME 40mm Fan, 12V 3Pin Fan, 40mm x 40mm x 20mm 4020 0.1A Brushless CPU Cooler

Works great. Factory fan burnt out after 10ish years of working and this fan works great as a replacement. Easy to install and everything. Just DO NOT screw too tight. If the computer starts making a weird noise after installing you probably tightened it too tight and the blade is hitting the computer in some way.

Pros: Nice and quiet. A perfect fit.Cons: Lasted 18 months of continuous use in my NAS before it started growling and needed replacement.I'll probably buy it again. It is difficult to find a fan this quiet and in this size.

Fan works great however its not as quiet as it states. But i dont care about the noise, it does the job, great for its price!

Great buy that did the job

I have a new fan-less dual core i7 based mini PC with 8 gb ram, 256 gb ssd with just 2 side vents but the core temp kept rising to 90 C and I was worried I'd cause damage and the aluminum case was almost too hot too touch. There was room to fit this fan inside by taking the bottom plate off, drilling some air holes and fitting the fan to suck air in from the bottom. The small motherboard even had a CPU fan connector. Now the case is just luke warm to touch and the core temp sits around 40-50C depending on load. Intel N3540's are fine as they are designed for tablets without fans but i7 CPU's need fans even lap top versions. Use two washers to stand off the fan from the bottom else the blade will rub.