The NA-SAVP3 chromax.white is a fan accessory kit including 16 white NA-AVP3 anti-vibration silentblocks for up to two compatible 140mm rounded chassis fans such as the NF-A15 (see details of compatibility). Designed from ultra-soft silicone, the NA-AVP3 silentblocks reduce the spread of micro-vibrations while ensuring full compatibility with fan screws and most mounting systems. The chromax.white version also allows you to offer white touches to your Noctua NH-D15 chromax.black fan or any other model of the chromax line for a successful aesthetic result, perfectly matched to the colors of your configuration. The NA-AVP3 anti-vibration silentblocks are compatible with Noctua fans listed below: NF-A15 PWM, NF-A15 HS-PWM chromax.black.swap, NF-A15 HS-PWM chromax.black (supplied with the NH-D15 chromax.black). Please note that the NA-AVP3 cannot be installed on unlisted fans and are not compatible with other fans on the market.