I just learned: Most modern #mikrotik devices support dual power inputs. Either they have PoE and DC input or two/more separate DC inputs.

It will always choose the higher voltage if both inputs are powered, so I got a 24V and a 48V PSU. The PoE should be passive PoE (using Mikrotik's injector) for it to work.

Why am I doing this? One of the power paths goes through my lifepo4 UPS. This way I can unplug the UPS and do maintenance / go camping with it without any downtime.