Today only, Amazon is offering up this 600 watt/1000-volt CyberPower UPS for just $75, or about $30 less than its usual price.

If you use a desktop computer, this will of course keep your machine running without any interruption in the event of a power outage, which means you won’t lose any unsaved work. But even if you only use laptops and mobile devices at home, this could still run lamps, your router and modem, or even a TV until the power comes back on.

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Just note that this is a Gold Box deal, meaning this price is only available today, or until sold out.