Noctua NF-A12x25 PWM, Premium Quiet Fan, 4-Pin (120mm, Brown) Description Features: Premium quiet fan, 120x120x25mm, 12V, 4-pin PWM, max. 2000 RPM, max. 22.6 dB(A), >150,000 h MTTF Next-gen A-series design combines high airflow and high static pressure performance, ideal both as a case fan and for CPU coolers, watercooling radiators and AIO liquid cooling systems State-of-the-art engineering (AAO frame, Flow Acceleration Channels, record tight 0.5mm tip clearance) and construction (Sterrox LCP material, metal-reinforced hub, metal bearing shell, etc.) 4-pin PWM version for automatic speed control via 4-pin PWM fan headers, 2000rpm maximum speed (1700rpm with supplied Low-Noise Adaptor) Includes anti-vibration mounts, radiator gasket, fan screws, extension cable and y-cable for running two PWM fans on the same header Product Details: Product Dimensions: 4.72"L x 0.98"W x 4.72"H Brand: Noctua Power Connector Type: 4-Pin Voltage: 12 Volts Cooling Method: Air Compatible Devices: Desktop Noise Level: 22.6 dB Material: Sterrox LCP Maximum Rotational Speed: 2000 RPM Product Dimensions: ‎4.72"L x 0.98"W x 4.72"H Brand: ‎Noctua Power Connector Type: ‎4-Pin Voltage: ‎12 Volts Cooling Method: ‎Air Compatible Devices: ‎Desktop Noise Level: ‎22.6 dB Material: ‎Sterrox LCP Maximum Rotational Speed: ‎2000 RPM Item model number: ‎NF-A12x25PWM Item Weight: ‎12.7 ounces Item Dimensions LxWxH: ‎3.94 x 3.94 x 3.94 inches Color: ‎Brown Computer Memory Type: ‎PC1066 Batteries: ‎1 Unknown batteries required. Manufacturer: ‎Noctua Language: ‎English Country of Origin: ‎Taiwan Is Discontinued By Manufacturer: ‎No Date First Available: ‎May 2, 2018