Intel Core 2 Quad Socket LGA775 12V DC 0.14A Copper Core 4 Pin CPU Cooling Heatsink Fan Assembly E30307-001.
Socket: LGA775
Compatible/Supported CPU: Core 2 Quad Socket LGA775 CPUs up to 95W TDP
Voltage: 12V DC
Rotation Speed: 2,500 - 3,400 RPM ±10%
Connectors: 4-Pin PWM
Type: CPU Cooling Fan