4-Pin Premium Cooling Fan
Award winning 92x25mm A Series fan with flow acceleration channels and advanced acoustic optimization frame for superior quiet cooling performance
Ideal for 9 cm CPU coolers (such as Noctua NH-U9 (S) and NH-D9L series), compact PC boxes (HTPC, ITX, small form factor), replacement fan for NAS and other devices, etc.
4-pole PWM version for automatic speed control via 4-pin PWM fan head, wide speed range of 400-2000 rpm. (1550 rpm with connected low noise adapter)
Includes anti-vibration fittings, fan screws, low noise adapter, extension cable and Y cable for operating two PWM fans in the same head
Noctua de confianza quality with SSO2 superior quality bearings and more than 150,000 hours MTTF