Overview Fractal Design Celsius S36 360mm Silent Slim All-In-One CPU Liquid CoolerModel: FD-WCU-CELSIUS-S36-BK The Celsius series uses a combination of cutting edge technology and premium sound dampening materials to deliver extreme cooling performance with minimum noise output An integrated fan hub with concealed cable routing simplifies cable management for a clean installation Included Fractal Design Dynamic X2 PWM fans offer a wide speed adjustment range from 500 to 2000 RPM allowing for near silent operation under lighter loads and maximum airflow during heavy usage Rotational Speed: 1950 ~ 3150 RPM. Radiator fittings use standard G 1/4 inch thread for maximum compatibility and expandability Acoustical Noise (full speed): 20.0 dB.Total Airflow - 175.2 CFM Official Link:https://www.fractal-design.com/products/water-cooling/celsius-s36/Black/ Specification FD-WCU-CELSIUS-S36-BK Warranty & Returns Return PoliciesReturn for refund within: 14 daysReturn for replacement within: 30 daysThis item is covered by our Standard Return Policy WarrantyThis item has 5 years manufacturer warranty Manufacturer Contact Info:Website: https://support.fractal-design.com/support/home