https://wccftech.com/noctua-and-louqe-introduces-the-nh-l12-ghost-s1-edition/

The NH-L12 Ghost S1 Edition was created through a collaboration between Noctua and Louqe, this version of the NH-L12 CPU Cooler is designed to fit in Louqe's Ghost S1 PC case. This special edition is the perfect addition for the Ghost S1 PC case due to offering a large number of features that are ideal for smaller form factors.

The NH-L12 Ghost S1 Edition features a single 92 mm, The second generation of the NT-H2 thermal compound, and the latest SecureFirm2 multi-socket mounting system. This CPU cooler comes with both PWM support and Low-Noise adapters. The PWM is convenient for automatic speed control through the motherboard, at Full performance under load, and still stays virtually silent at ideal. The maximum speed can be reduced from 1600 to 1300 RPM using the Low-Noise adapter.