The pump is rated at moving 500 liters/hour of fluid. This is a far cry from the older 90 L/hr pumps we saw in the original Tt Aquarius H2O system. The benefit of this strong a pump is so upgrades and accessories are possible. Tt makes a number of water cooling accessories such as VGA water blocks, HDD H2O coolers, memory H2O coolers and the like. Check out this page to have a look at how many different upgrades Thermaltake puts out.
FULL STORY @ OVERCLOCKERCAFE (http://www.overclockercafe.com/Reviews/cooling/Tt_Bigwater_760i/index.html)