Last September we carried out a comprehensive test of 140mm fans, checking out 13 products from 9 brands (see our 140 mm Fan Roundup for details). But even though large fans have been getting more and more popular, it is 120mm models that are still prevalent in computer cases, power supplies and coolers, so this review is all about them. I’ve got so many products to test that my desk could accommodate no more than a third of their number! I also have to split my tests in two halves according to the speed of the fans. In today’s review I will be talking about 18 fan models with a rotation speed up to 1350 RPM. The second part will cover even more models that run at higher speeds, produce more noise, but also feature higher cooling performance. So, let’s get started.