The exterior of the Nexus Breeze 400 Mid-Tower Case is made of a durable plastic, fastened to a rigid steel frame. It’s easy to announce that this combination of steel/plastic is very similar to that of a Dell Dimension or Optiplex tower. This is true, however working with Dell PC’s professionally I can report that the Nexus Breeze is stronger, tougher, and built to a higher standard of design, engineering and craftsmanship. The case has a very solid and competent feel; this observation is enforced by the shear weight of the unit. The bottom of the case has Power and Reset buttons, as well as Power and HDD activity LED’s. The LED’s are orange in color. Below is a plastic sliding door that covers 1 x USB, 1 x FireWire, 1 x Headphone Jack, and 1 x Microphone Jack. I appreciate that the sliding door covers the plugs when they are not in use, but the thing is impossible to close once open. A flat headed screwdriver was required to pull the slider down every time. I hope this detail can be better engineered with future revisions of this case.