My system is a Late 2015 iMac running Sierra ver 10.12.4, My UPS is an Eaton 5S-1000. I've read that UPS support is built into OS X, and no added software is required. Unfortunately, this is not working for me! Any advice or help is most appreciated.
Here's what I see in my System Report for USB:
And here's what I see in my "Energy Saver" (note no tab for UPS) :
