The HR-01 follows the classic tradition of Light N Easy. It's light in that it's only 520g without a fan. It's easy in that you don't need to take out your motherboard to install, or uninstall any part of your computer setup. But that is not the best part! For those of you who cannot stand the noise produced by howling cooling fans, you will definitely love this. It works as a passive cooling system. That means no fan! And no fan equals any noise produced by your CPU cooler.