Product review (5 stars): AMAZING Kegerator to use with external tank!
I bought this kegerator with the intentions of running my tanks externally. It turned out great!

Inside the unit are several round "knockouts." I couldn't find any info if the coolant lines ran near those knockouts so I made a thick mixture of alcohol and baking soda and painted it across the back. The mixture will dry where the lines run, giving me a little (not much) confidence boost. I used a knife to cut the plastic and a butter knife to slowly dig the foam insulation away until I could see the metal wall. I used a small hole saw and cut two holes 1 for my CO2 and 1 for my Nitro gas. After installing my brass manifold as well as silicone in the gaps and installed the tower  I loaded three 5 gallon corny kegs (I am a homebrewer).

The deep-freeze function quickly cooled down the kegs and after a day of sitting I poured my first glass.

This thing is awesome. I am a VERY happy customer!