Prolink PRO1201SFCU UPS
After my APC BACK-UPS battery died and a replacement made no financial sense, I switched to the Prolink PRO1201SFCU UPS. My new home's electricity trips monthly, so it protects my two NAS units.
UPS
Uninterruptible power supplies for the desktop.
APC BACK-UPS BK650-AS USB 650VA
My new desktop's Corsair SF750 PSU kept failing, even tripping power three times before dying, despite the PC being off. To protect against such power issues going forward, I picked up the APC BACK-UPS BK650-AS 650VA.