Arctic P14 Max PWM fans - 2800rpm, Fluid Dynamic Bearing versions. Used for intake/exhaust as case fans, only used at ~20% max rpm for under 6 months. All working and functional, no issues - only selling to swap to all Noctua fans. These are all the upgraded fluid dynamic bearings, not the older ball bearing fans so should also be quieter. PWM so can all be controlled to any speed at specified CPU temp. Total of 4 fan’s available, shipping discount for multi buy. Each fan has its original box and 4x mounting screws (3 fans with sealed bags, 1 with bag opened).