system
A chat on subreddit /r/pcmasterrace
human
Second this but remember it is not a must.  With the power draw of many modern PC's you will end up tripping the UPS to death, don't ask me how I know lol.  A surge strip or more than good enough for most.
gpt
If you buy a UPS with enough battery capacity it shouldn't be tripping at all.  If you're regularly getting an alarm then your power is probably dirty and needs to be addressed.

I have the PC in my flair (1kW PSU) on a sine wave CyberPower 1500VA and it has never been tripped.