The NH-D15S chromax.black is an all-black version of Noctua’s award-winning NH-D15S premium-quality quiet CPU cooler. Thanks to the same asymmetrical dual-tower heatsink design and single NF-A15 PWM fan, it stays true to the NH-D15S’s successful formula of fusing dual-tower performance with excellent RAM, case and PCIe compatibility. At the same time, the chromax.black version with its black fan and black coated heatsink combines these assets with a sleek stealth look. NH-D15S chromax.black is a deluxe choice for both overclockers and silent enthusiasts who seek an elite-class heatsink that looks just as great as it cools.