A new project called OpenNMC is making an open-source hardware replacement for the APC UPS monitoring card.

[Jeff Geerling covers the OpenNMC here](https://www.jeffgeerling.com/blog/2026/opennmc-apc-ups-replacement-card/), which is currently being crowdfunded for a release soon.

Anyone using APC brand UPSes and looking at NMC 3 cards and their subscription cloud services, will probably be highly interested in these. We aren't currently using APCs, but if we were we'd have to use the NMC 3 because earlier management cards don't support the IPv6 that we use.