"To cool the heat sink, Noctua includes two NF-A12x25 120mm PWM fans for push-pull setup. These fans use the latest innovations in aerodynamic engineering to push the boundaries of performance while keeping sound down. Included are Low-Noise Adapters that lower the maximum fan RPMs from 2000 to 1700. The CPU cooler has a 6-year warranty, and is built to last. Noctua offers a free service for past and future CPU socket mount upgrade kits, allowing users to upgrade their system and keep the NH-U12A in service!"



Link: Neoseeker