Techniz.co.uk has posted a review on the Thermaltake Volcano 4005 Heat Exchanger.

This Volcano 4005 Heat Exchanger from Thermaltake is one of the best CPU cooling, the cooler itself combines the air and water cooling together and give an excellent cooling performance to the CPU. It was also totally fanless CPU cooling solution unless an optional fan had been installed to it. By using this cooler, you might also need a good pump in order to make sure the water flow is able to get through all the loops in the cooler. The Volcano 4005 Heat Exchanger is also support the Intel P4 ( Socket 478 ), P4 LGA 775, AMD K8 and K7 platforms of CPU cooling. The only bad thing from this cooler is the weight which is consider a heavy weight CPU cooler. But, it might not be a big problem as long as having a proper installation of it.

Thermaltake Volcano 4005 Heat Exchanger