Tailored to provide superior RAM and PCIe compatibility, the NH-D15S is an asymmetrical single fan version of Noctua's award-winning flagship model, the NH-D15. Thanks to its asymmetrical design, the NH-D15S clears the top PCIe slot on most µATX and ATX motherboards.

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.

Renowned, award-winning NF-A15 140mm fan with Low-Noise Adaptor and PWM for automatic speed control: full cooling performance under load, whisper quiet at idle! Noctua's premium cooling components are internationally renowned for their superb quietness, exceptional performance and quality.

Mar 28, 2021 · The D15S was designed to be offset in order to handle PCIe slot compatibility, and thus, in my opinion, it is the primary factor that needs to be looked at when choosing between the D15 and D15S. It may turn out that both are compatible with someone's setup.

Feb 24, 2016 · The NH-D15S has an advantage over the NH-U14S. For one thing the NH-D15S, like the NH-D15 and NH-D14 is a dual tower cooler. The NH-U14S is a single tower cooler. The size of the heat sink...

Apr 5, 2016 · In today's review, I will be looking at the Noctua NH-D15S. This new variation on their current high-end model offers a unique twist since its design features an asymmetrical layout that increases compatibility with a motherboard's expansion slots.