PC Cooler C81H Slim CPU Cooler Turbo Blower Cooling Fan For 1U Server / HTPC Intel CPU Socket LGA1156 / LGA1155 Type: Fan & Heatsinks RPM: 5000-5499 RPM Air Flow: 25-30 CFM Noise Level: 25-30 dBA Power Connector: 4 Pin Color: Black Heatsink Material: Aluminum Compatibility: LGA 1155 / 1156