Allows the installation of Noctua NF-A12x25 120mm fans on watercooling radiators that are designed for 140mm fans Improves the performance of all-in-one (AIO) or custom (DIY) 140mm-based watercooling systems through the superior efficiency of the NF-A12x25 fan! Compatible with the NF-A12x25, NF-F12, NF-S12A and NF-P12 redux fans Includes two NA-FMA1 adaptors and eight NA-AV4 anti-vibrations mounts for two fans Trusted Noctua quality backed up by 6-year manufacturer’s warranty