The NH-D15 G2 represents the second, further improved generation of the iconic Noctua NH-D15. Thanks to two state-of-the-art NF-A14x25r G2 PWM fans with speed offset, eight heat pipes, and asymmetrical cooling towers carefully optimized for use with the new fans, it achieves an even higher cooling performance compared to its highly acclaimed predecessor, while maintaining the same excellent operating quietness. Thus, the G2 version is a true flagship model that pushes the boundaries in air cooling, continuing the tradition of the original NH-D15 and competing with the efficiency of many all-in-one liquid coolers.