A speed controller is attached to the fan. It looks like a small tail:

The cord is short and it is rather inconvenient to control the speed inside the system case. Anyway, this controller allows varying the fan speed from 1300 to 2000rpm at 16 to 25dBA of noise (Thermaltake traditionally understates the level of noise). This fan creates a max airflow of 86.5CFM.

This is a photo of the cooler from below:

The pipes in the base are soldered together like in the Zalman CNPS8700 LED:

The plate that the fan and the mounting plates are fastened to resembles the one of the Zalman cooler, too. It has no contact with the pipes.

The Thermaltake V1’s bottom is not a mirror, yet its finish quality is high:

The bottom is perfectly flat as I checked out by looking at the trace of thermal grease it left on a piece of glass.