Noctua This is a brand that you have likely heard of throughout the years, but if not, you really need to look into them more. Noctua is well known for their highly successful and high quality CPU coolers, cooling fans, and thermal pastes. It has been a while since we’ve looked at a product from Noctua, so today we’re going to take a look at a cooler that is nearly identical to one that we previously reviewed, but with a couple revisions. This particular cooler, the NH-D15S, was originally released on August 28, 2015, so it has been around for a while, but still performs like a king. Take a look!