noctua na-is1-12 sx2, inlet side spacers for 120mm fans

Introducing a 5mm offset, NA-IS1-12 12cm inlet spacers can reduce influx turbulences in suction type applications where fans draw air through perforated panels or other obstacles in close proximity | Simple but effective: In many situations, reducing influx turbulence can lead to significantly improved airflow performance as well as lower noise levels and more pleasant sound signatures | Ideal for PC case intake fans, pull fans on water cooling radiators or other situations where fans draw air through grills, perforated panels, punctuated sheets, mesh structures, filters, etc. | Compatible with all current Noctua 120x25mm fans such as the popular NF-A12x25, NF-F12, NF-P12 redux or NF-S12A series, not compatible with NF-A12x15 or fans from other manufacturers | Sx2 set includes two inlet spacers, 8x NA-AV3 anti-vibration mounts, 8x screws for case fan installation, 8x screws for radiators with M3 threads and 8x screws for radiators with UNC 6-32 threads