Inbuilt UPS for UCFF Desktop?

[p_p]

Hello everyone, my first post here!

 

I am eagerly waiting for my first DC-ATX power supply by HDPlex, with 400W rating (HDPLEX 400W HiFi DC-ATX). What occured to me is that DTRs such as Clevo laptops, also have similar power consumption as some of the Desktops, yet they have internal circuit that switches between External DC and Internal Battery DC as power source.

 

My question is: is there a similar UPS for UCFF desktops with power draw of, say 200W, where we could have about <=100WH Lithium Ion Battery + DC ATX internal power supply (like the HDplex) + a power circuit similar to DTRs which could manage power source from external DC brick and internal Battery?

 

This question arose because a traditional UPS is as big as NCASE M1 that my PC is currently housed in. It would be nice to know if someone sells a similar kind of power supply arrangement for desktops.

 

The closest I could get to this idea was NUC UPS :

https://www.mini-box.com/NUC-UPS