The fans are PWM with ARGB lighting. They have a 4-pin PWM power connector for speed control and a separate 5V 3-pin ARGB connector for multicoloured LED lighting.

Moin, I was able to do some research and indeed it seems that the manufacturer does not currently have any "reversed" versions of these models. Only a high-speed version: - be quiet! LIGHT WINGS LX 120mm PWM high-speed Triple-Pack Whether and what the future holds in this respect is not something I can judge at the moment. They may indeed only be available with the cases.