Compared with the MAX 4000, the TNT is nearly as old as the MAX 4000 box. But this TNT design is totally different and focussed on the carriers needs.

We are strongly separating carriers and providers. On the right side you have a look in a totally emty TNT chassis (barebone).

So the TNT has 6 (six) fans on each side. This is not "normal" or "usual", even for units exceeding a quarter of a million dollars new.

Have a look on both sides of the MAX TNT. The FAN block-modules are removable with some screws.