GIGABYTE 3D Rocket II Socket 478/775/AMD AM2/K8 CPU Cooler Dual Fan Duct Design / Fluorescent Ring / Blue LED / 4 high conductivity heat pipes design Cu material / High density precise forging copper bottom Super large Aluminum Fins for more thermal area / 12 V Rated Voltage / 0.38A Rated Current 1500 ~ 3000 rpm / 16 ~ 33.5 dBA Noise / Ball Bearing Bearing Type 3.5-inch panel with Linear fan speed control / Changeable Fluorescent rings