Supermicro SNK-P0049P 1U Passive Heatsink for CPU Socket H SeriesSupermicro SNK-P0049P Passive Heatsink Compatible with LGA1151, Socket H Package Dimensions: 6 x 5 x 4 inches Item Weight: 1 pounds Manufacturer: Supermicro Supermicro SNK-P0049P Passive Heatsink for 1U Rackmount Server. Compatible with LGA1151, Socket H motherboards.