3pin

My NH-D14 came with NF-P12 and NF-P14 non PWM fans, but I barely used them. Instead I used two Deepcool UF-140 PWM fans. I think PWM is what won me over, but maybe I underestimated Noctua's tuning. Also, I think they're case fans, rather than tuned to high static pressure for heatsinks and...