Intel Celeron & Pentium-4 478 Socket 2.5" Copper Core Aluminum CPU Cooling Heatsink Fan Assembly C91249-001 A66460-001. Includes heatsink fan assembly bracket.Intel Part Number: C91249-001Heatsink Fan Clip Part Number: A66460-001Compatible Part Numbers: C91249-002 C91249-003Features:Aluminum heat sink with Copper Core for high thermal conductivityIntel Celeron and Pentium-4 478 Socket Compatibility2.5 inch fanSupports Socket 478 Intel Pentium 4 and Celeron processors 2.8E, 3 GHz to 3.40 GHz3-pin fan connectorHeat sink retention clipSpecifications:- Socket: Intel 478- Dimensions (DxWxH): 90mm x 92mm x 58mm- Fan diameter: 70mm- Connector 3 pin