OCC has published a new review of the ZEROtherm BTF90 CPU Cooler

This cooler is using heatpipe technology to draw the heat from your CPU and expel it into the air. There are a total of eight pipes doing the heat drawing. That is actually quite a lot considering the size of this cooler. The pipes are connected to an array of copper fins that absorb the heat from the pipes. These fins represent more than 4,000 cubic centimeters of surface area. Blowing air across these fins to remove the heat into the air is a PWM speed controlled fan with a variable speed that covers the 750 to 2500 RPM range. There are also two bright red LEDs in the fan. The base of the cooler is polished copper to enhance contact with the CPU.

ZEROtherm BTF90 CPU Cooler Review