Noctua NF-A12x15 120mm chromax.black.swap Slim PWM Fan – Dimensions: 120x120x15 mm – Connection: 4-Pin PWM – Cable Length: 1cm + 30cm NA-EC1 Extension Cable – SSO2 Bearing – Fan Speed: 1850 RPM (450 RPM Min) – Acoustical Noise: 23.9 dB(A) – Static Pressure: 1.53 mmH20 – Operating Voltage: 12V – MTTF: >150,000 Hours – NF-A12x15-PWM-CH-BK-S – 6 Years Limited Warranty