Dynatron Cooling Fan/Heatsink K5 CPU Support: LGA1155: Intel 3rd. Generation Core i3/i5/i7 Desktop Processors LGA 1156: Previous Generation Core i3/i5/i7 Desktop Processors Solution: Socket 1150/1155/1156 Mini-ITX Form Factor1.5U and Up Overall Dimension: 92.0 x 92.0 x 41.0mm Mounting Pitch: 75.0 x 75.0mm