Look at the glass.
Glass must be a bit thicker, pay attention to the periphery of glass even whether to have crack, if have crack, mean to have hidden trouble, still have to pay attention to whether to be intractable.
See function.
The first consideration should be safety.
The heat dissipation.
Estimate how much heat your equipment generates. Generally speaking, you should have two to four fans on top of your cabinet. The more the better. There are some screws, nuts and so on used to fix the frame, but also enough. Without the trouble of insufficient accessories due to future expansion.
