WEBMar 19, 2019 · The NH-U12A is the latest, 5th generation of Noctua’s award-winning U12 series of 120mm size coolers. Conceived to push the envelope of the 120mm form factor, it combines two of Noctua’s flagship model NF-A12x25 PWM 120mm fans with a completely redesigned heatsink featuring 7 heatpipes and an increased fin …