The H20-320 Edge kit comes ready to use. If you are just looking at cooling your CPU the
H20-320 is most likely overkill but it is designed with expansion in
mind. Adding one or two additional video cards into the mix is what the
MCR320 radiator is waiting for. It is not a closed loop design that doesn't allow any expansion.
FULL STORY @ OVERCLOCKERSONLINE (http://www.overclockersonline.net/reviews/swiftech-h20-320-edge/)