Comment by bobbob1921

APC UPSes that support their network management card add in - then the cards can frequently be purchased on eBay for $30-$100, you have to make sure the UPS supports the card, but they are excellent. Model numbers like ap9631 (if i recall). I run about 10 of them across different locations and they work great , some of them for 8+ years now. ( about a year ago when I got a new ups, Apc still offered the older firmware for download, however after a certain FW version it started going to a cloud subscription model - so be sure to keep the old firmware. If you’re worried about the firm or not being updated on the non-cloud version, just be sure to vlan/firewall control access to them which you should be doing anyway)