Koolance EX2-1055 Computer Liquid Cooling System, Rev1.3 EX2-1055 is an ambient liquid cooling system designed with features for computer cooling. This model contains a triple x 120mm fan aluminum radiator, providing roughly 900W of cooling with a 25&deg;C ambient delta. Just add tubing, fittings, coolant, and connect to your cold plate(s). Cooling capacity: 900W (3071BTU/hr) with 25&deg;C liquid-ambient delta @ 4.5LPM. Radiator fan speed: automatic based on temperature, or 10 manual levels.