Noctua NA-SAV2 chromax.blue Anti-Vibration Fan Mounts 20 pack\n\nThe NA-SAV2 chromax are a fan accessory set consisting of 20 NA-AV2 anti-vibration mounts for up to five fans. Replacing standard fan screws; the NA-AV2 mounts enable the convenient; quick and vibration-free installation of fans in standard mounting holes for case fans. At the same time; the chromax.black edition is ideal for creating all-black builds with Noctua's industrialPPC fans.\n\nVibration-free installation for lower noise emission Fans installed with standard fan screws can transmit minute vibrations to the PC case; which can lead to annoying resonance noises. Switching standard fan screws for NA-AV2 mounts can drastically reduce these structure-borne noises by effectively decoupling the fan from the PC case.\nDouble-side design Compared to conventional single-side anti-vibration mounts; the NA-AV2's double-side design makes them much easier to work with in space-restricted environments or placements where the ;