The NH-D15 chromax.black is an all-black version of Noctua’s award-winning flagship model NH-D15 premium-quality quiet CPU cooler. Thanks to the same proven dual-tower heatsink design and NF-A15 PWM fans, it stays true to the NH-D15’s successful formula of rivalling the performance of all-in-one water coolers while maintaining superb quietness of operation. At the same time, the chromax.black version with its black fans and black coated heatsink combines these assets with a sleek stealth look. Topped off with the renowned SecuFirm2™ multi-socket mounting system, Noctua’s enthusiast-grade NT-H1 thermal compound and a full 6-year manufacturer’s warranty, the NH-D15 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. Award-winning NH-D15 cooler Tens of thousands of enthusiast users all over the world swear by the NH-D15's quality and performance. Recommended by more than 200 international hardware websites and magazines, it is renowned for being one of the best high-end coolers on the market. chromax.black design The NH-D15 chromax.black is black from head to toe: Featuring a black coated heatsink, black fans with black anti-vibration-pads, black fan clips and black mounting parts, it’s right at home in all-black builds and easy to integrate with other colour schemes. Colour-customisable Using the optional NA-HC3 and NA-HC4 heatsink covers as well as the NA-SAVP3 anti-vibration pads (available in black, blue, green, red, yellow, white), the NH-D15 chromax.black can be fully customised to fit popular build colour schemes such as black and red or black and white.   6 heatpipe dual tower design As compared to conventional single tower heatinks, the NH-D15's fine-tuned six heatpipe dual tower design provides more surface area, better heat-distribution and superior airflow efficiency in dual fan mode.   Widened fin stack and expanded heatpipe layout Compared to the NH-D14, the NH-D15's fin-stack has been widened from 140 to 150mm and its heatpipes are now spaced further apart, which allows for a more uniform heat distribution over a larger surface area and thus contributes to the NH-D15's superior efficiency. High RAM compatibility in single fan mode Thanks to its recessed lower fins, the NH-D15 provides 64mm clearance for tall memory heatsinks in single fan mode, making it compatible with most high end RAM modules on the market. In dual fan mode, the NH-D15 should be used with standard height RAM (up to 32mm). Dual NF-A15 140mm fans The NH-D15 features two of Noctua's premium class NF-A15 140mm fans. Complying with Noctua's AAO standard and featuring sophisticated aerodynamic design measures such as Flow Acceleration Channels, the NF-A15 has quickly built up a reputation as one of the best 140mm fans on the market. PWM support and Low-Noise Adaptors The NF-A15 premium fans supplied with the NH-D15 support PWM for convenient automatic speed control through the motherboard. In addition, the maximum fan speed can be reduced from 1500 to 1200rpm using the supplied Low-Noise Adaptors for even quieter operation. Excellent component cooling Extending below the fin-stacks, the large NF-A15 fans not only contribute to the NH-D15's superb CPU cooling capabilities but also provide massive airflow over surrounding motherboard components and heatsinks, thus ensuring excellent component cooling performance.