There are hundreds of small and big brands of Computer UPS and picking up the best one from all of them can be a Mission Impossible. Reputation-wise, there are a few Computer UPS manufacturers that seem to be ahead of all. To name them, these are CyberPower, Tripplite, Eaton, Vertiv, and APC. A Computer UPS from any of these brands is likely to perform far better than one from any other brand.