The cooler is very clean and working, just dusty from disuse. Specifications: Socket Type: Exclusively supports LGA 775 sockets (also known as Socket T). Fan Manufacturer: Sanyo Denki (for Intel). Fan Size: 3.25 inches (approximately 80 to 90 mm). Voltage: 12V DC (DC 12V). Current: 0.28 Amperes. Connector Type: 4-Pin wire supporting PWM (automatic fan speed control based on CPU temperature via the motherboard). Base Material: Made entirely of Aluminum. Going for offers: The highest offer will get it.