CPU Cooler in 1U thickness, low profile design, 27mm in height, Cooling fan size is 60mm. Top Notch 2-Ball Bearing enhances quietness and super long life span. CPU Cooling Fan supports Intel CPU LGA 1156 / 1155 / 1150 / 1151 sockets. PWM enabled to maximize cooling efficiency and silent operation, very quiet. 1500 ~ 2500 RPM; 13 ~ 25 dBA Noise Level; Air Flow 9.5 CFM; 4-Pin PWM connector; Metallic Aluminum Alloy & Copper Structure with radial fin design to optimize cooling effect. CPU Fan supports Intel CPU up to 70W.