Thermaltake Contac Silent 12 CPU Cooler4. 72" Maximum Fan Diameter 556 gal min Maximum Airflow 1500 rpm Hydraulic Bearing 4 pin PWM Socket B LGA 1366, Socket H LGA 1156, Socket H2 LGA 1155, Socket H4 LGA 1151, Socket H3 LGA 1150, Socket T LGA 775, Socket AM4, Socket FM2, Socket FM1, Socket AM3 PGA 941, Socket AM3+, Compatible Processor Socket Retail Processor 4. 6 Year Life General Information Manufacturer: Thermaltake Technology Co., Ltd Manufacturer Part Number: CL P039 AL12BL A Brand