Let’s take a look at the latest mid-tower case from the South Korean 3R System, the T100 Valkyrie, which comes with eight expansion slots and several other features.
Figure 1: 3R System T100 Valkyrie case
Figure 2: 3R System T100 Valkyrie case
As you can see, the left panel of the T100 Valkyrie has a big tinted window.
Figure 3: The left-side panel