Hi,

RB750Gr3 tried to make ups connection via usb but it does not see the usb port RB750Gr3 series does not support ups connection from usb?
https://prnt.sc/wfvqtg

What kind of UPS are you connecting to it? Is it compatible with the protocol supported by MikroTik / RouterOS ? https://wiki.mikrotik.com/wiki/Manual:System/UPS

Hello,
No APC brand ups, not cin brand ups, there is a program called watchpower.
I can see everything from there.
Can't I connect this Mikrotik?

Haven't you tried this?