Standard two door, gas/electric model.
I measured on electric it last week during a central Illinois heat wave. One additional external fan at the bottom of the outer compartment, but no internal fan.
Set on the highest setting (5) on the controls over the door, the refer was repeatedly in the high 30's. The freezer was +5 on the top shelf and -7 or so on the bottom shelf.
Hope this helps.
2009 K-2500 Duramax
2014 Silverback 33RL