I just installed the ARP 2.1version with 2 fans (blowers) in my 2015 Hemi with a DM2852 in a slide. Check out the web site at https://www.arprv.com/index.php
Love it. My temps were running high 30s to low 40s at best with the temp probe pushed all the way up on the fins
. Now, the new blowers aren't near as loud, don't run all the time and the cabinet next to the frig is much cooler. Plus, I have moved the temp probe to almost the lowest portion of the fins. Temps now 2 - 9 degrees in Freezer and around a constant 33 in frig, with outside temps in high 80s. Yes, there are cheaper ways to add fans. However, I really like the added safety of having a monitoring system to keep frig from over heating and maybe extended it's life. These fridges in slides really do take a beating. The ARP is a easy install, and the folks (Paul) are super to deal with.
No I don't work for or have any affiliation with ARP. I just found the site while looking for additional fan choices on Google.