Noctua has always been known for their quality products and high performance air coolers. The issue with tower air coolers is that they often tend to be large, heavy and cover up portions of your motherboard under their bulk. While most companies have shifted their focus to the less intrusive all-in-one liquid coolers, Noctua has stayed true to their air cooling roots. Today we take a look at their NH-U12S performance cooler; a tower cooler in a smaller, more space friendly package that promises the same performance you would get out of larger, bulkier models and run it through our tests. Is the age of air cooling at an end or just in transition? We'll find out.