Dynatron K520 Intel I3 / I5 / I7 Passive 2u CPU Cooler CPU Socket 1156. CPU Support: Intel Core: i3 i3-530 & i3-540, Core: i5 i5-650, i5-650, i5-660, i5-661 i5-670 & I5-750, Xeon Processor: 3400 Series, Core: i7 Processors, I7-870 & I7-860. Solution: 2U & Up Server. Overall Dimension: 90.0 x 90.0 x 64.0 mm. Weight: 485 g. Material: Aluminum 6063 (99.94%) Extrusion.