As a network interface to a compatible APC UPS, though, it does its job and does it quite well.

I've installed these in about 15 Smart-UPS's now and contrary to the instructions they are hot-swappable which really makes the difference for me.

I would strongly recommend this product for anyone who has Smart UPS

Bought a used model for an APC Smart-UPS ATX 500 Power Supply SMT750RM2U. Card initially configured itself using DHCP, then I changed it to static IP through the browser UI

Makes monitoring your UPS a breeze.

We bought this add-in card for our APC Smart-UPS SMX1500RM2U X 1200W/1500VA LCD 120V 2U/Tower UPS System

Note: Unless you pair this with a compatible APC UPS, it is absolutely a one-star product.