Thermaltake's ISGC-300 is a lower noise tower heatsink that offers a slight performance edge over the companies ISGC-400 model. The saw-toothed aluminum cooling fins on the ISGC-300 are widely spaced to allow air from the single 120mm fan to pass through easily. Four 6mm diameter copper heatpipes ensure good thermal conduction from the base to the 95mm tower above. A small fan speed controller allows fan speed to be adjusted from 800-1300RPM for situations which demand the least noise possible.



Link: Frostytech