The side panels are a bit thinner and you are minus a fan, but the Gene retains the essence of what makes the Thermaltake Armor Revo the great case it is. From the exterior you are hard pressed to tell the difference between them. To begin with, the Revo Gene retains the width and depth of the full tower version while giving back only three inches in height (one bay worth). This means that the Revo Gene will be able to house the largest of graphics cards for an all-out gaming build. Thermaltake has also kept the nifty top hot-swap Dock-X system, the hidden HDD bay, and even the cool looking 'breathe' lighting effect.