Caveat: This respond to focuses on the computer hardware, not other units that might even be powered from the UPS. I have witnessed occasional experiences of non-sine wave power being incompatible with specified other devices. A UPS device for your router and modem is also fantastic through a power outage https://mma61482.digiblogbox.com/58533543/5-easy-facts-about-uninterruptible-power-supply-ups-described