U.P.S
When the power cuts out mid-task, an uninterruptible power supply buys you the minutes needed to save files and shut the computer down properly. It also smooths out the voltage spikes that wear electronics down. This category includes UPS units for home PCs, office equipment and network gear - compact models with a few outlets as well as pure sine wave devices for sensitive hardware. Choose capacity with a 20–30 percent margin over the connected load, then compare backup runtime, outlet count and phone or LAN line protection.
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