Can I use PROLINK UPS for my Mac mini M4 and 2 IPS monitors?

Any UPS will work as long as it provides the correct voltage and frequency for your devices. How long it will provide power in the case of an outage will depend on the size of the UPS's battery and the load you put on it.

If you want specific information, tell us what UPS model you're considering. Your photo didn't post.

Regards.