CPU coolers have come along way over the past decade when most of them were just a piece of heatsink with a noisy small fan strapped to them. Noctua is now synonymous with top tier products in this segment. Today we are looking into the single tower category of their new chromax.black treatment, alongside the D15 and the L9a/i. The NH-U12S has this new cool coating, while maintaining the proven slim-tower heatsink design and the NF-F12 PWM fan which means excellent cooling performance with superb quietness of operation and outstanding RAM, case and PCIe compatibility.