Hi,

Inside Cool Blue, sealed tubes filled with circulating chilled water remove up to 55 percent of the heat -- dissipating as many as 50,000 BTUs -- that's generated in a fully populated rack. The four-inch-thick Cool Blue targets datacenters that have reached their cooling limits with traditional air conditioning. By adding the unit, said IBM, racks can be fully populated.

Also, you might to check following article which is analyzed by AFCOM.
http://www.computerworld.com/hardwar...103144,00.html


thanks
arnold