This product is either discontinued or we cannot get that from suppliers.
Noctua U9DXi4, Material Copper (base and heat-pipes), aluminium (cooling fins), soldered joints & nickel plating, Fan compatibility 92x92x25, Bearing SSO2, Max. rotational speed (+/- 10%) 1600 RPM, Max. rotational speed with L.N.A. (+/- 10%) 1300 RPM, Min. rotational speed (PWM, +/-20%)300 RPM, Airflow 64,3 m³/h, Input power 0,96 W, Voltage range 12 V, MTTF> 150.000 h.
The NH-U9DX i4 is based on the latest version of Noctua's award-winning NH-U9 coolers. First introduced in 2005, the NH-U series has become a standard choice for premium quality quiet CPU coolers and won more than 400 awards and recommendations from leading international hardware websites and magazines.