Noctua NH-D15S, Premium Dual-Tower CPU Cooler with NF-A15 PWM 140mm Fan (Brown)

Noctua NH-D15S, Premium Dual-Tower CPU Cooler with NF-A15 PWM 140mm Fan (Brown) Brand: Noctua Fan Size: 140mm Bearing Type: SSO2 Type: Fan & Heatsinks RPM: 1500 RPM (Standard), 1200 RPM (with L.N.A), 300 RPM (PWM) Air Flow: 82.52 CFM (Standard), 67.98 CFM (with L.N.A) Noise Level: 24.6 dBA (Standard), 19.2 dBA (with L.N.A.) Heatsink Material: Copper