Pump and Cold Plate:
The benefit of liquid cooling provided by the Kühler 620 is immediate and twofold. Primarily, there is a lot more cooling potential in a liquid cooler such as this for the price. Secondarily, there is almost literally a cubic mile of space left available from where the stack of cooling fins of a traditional air cooler would normally occupy. Additionally, everything feels well built, and there isn't the constant risk of bumping the cooler and bending something. The copper cold-plate has been milled to tolerances that only machinists and engineers would understand in order to deliver even cooling and optimal contact across the CPU. That ultra-flat cold plate is then held to the pump head by ten screws with the pump head assembly being held together by fourteen screws. All of this adds up to a critical component that doesn't feel cheap when you hold it in your hand. As far as aesthetics go, the 620 is sleek but not gaudy. Black is always a good color for computer components and the splash of yellow, white and grey in the logos adds a touch of refinement.
The black finished radiator assembly comes with tapped holes on the four corners of each side, allowing for you to choose the fan-radiator configuration that best suites your desires or individual needs. The fin array consists of crumpled aluminum strips which almost exactly resemble the construction of an automotive radiator. The heatpipes run laps in-between the fins as the airflow provided by the fan(s) which away the heat dumped into the liquid by the CPU.
As far as seven-bladed 120mm fans go, this one is pretty quiet and does the job well enough. If you suddenly find the need for more airflow across the radiator, you can run down to the local hardware store and find a machine screw of the same length and thread of the long screws that Antec provides and get yourself a DIY push-pull fan arrangement. While certainly not an ultra-premium fan, these have an efficient and tried-and-true blade design that gets the job done.