Guys wtf is this thing?

Guys wtf is this thing?

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Battery backup

this, user, is the internet.

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It's a UPS.

UPS

You’ve never had a proper job, have you OP.

That's a UPS or Uninterrupable Power Supply. Basically if you lose power, whatever is plugged into it stays on for a few minutes in order to save files from getting lost and get a proper shutdown before the machine loses power.

To add to what this user said: it also helps prevent your computer from crying when there's a power overload.

It's where the elves live

It also allows you to erase evidence when the feds cut the power before busting your door in.

NSA's tracking device.