Intel Socket 478 Copper Core/Aluminum Heat Sink & 2.5" Fan w/Retention Clip & 3-Pin Connector up to 3.40GHz Intel Socket 478 D34080-001 Heat Sink and Fan General Features: Aluminum heat sink Copper core 2.5-inch fan Supports Socket 478 Intel Pentium 4 and Celeron processors up to 3.40 GHz 3-pin fan connector (approximately 11-inch cord length from fan to 3-pin connector) Heat sink retention clip Regulatory Approvals: CE UL