Rbmods posted a review on the Noctua NF-P14 FLX 140mm Fan
A quote from the article:
>> Noctua NF-P14 FLX 140mm Fan Review
Noctua, being well known for their quiet, but very effective CPU coolers, knows how to build quiet and effective fans. Continuing the trend to larger and larger fans, Noctua’s latest fan is of 140mm dimension. The nice thing about this fan is that it has mounting holes for both 140mm and 120mm, so it is backwards compatible.
>> Noctua NF-P14 FLX 140mm Fan Review