"These are standard black fans, so if you're looking for 'bling' you'll have to look somewhere else. What you do get is a huge amount of fan that you can spin at a slower, more quiet speeds to get the same amount of air-movement that you would out of a smaller fan. Although 120mm mounts can be found, 140mm openings are rare. Trimming the hole larger might be required in some cases. A 4-pin adapter is nice, but I would rather of had an extension cable instead. The cables were a foot shorter then the fans they replaced. Despite their almost identical looks, these three fans are completely different units. And so I'll comment on each on individually."