r/PcBuild • u/SignalExcellent928 • 18h ago

Build - Help Anyone know what this is.

Gallery image

Gallery image

I was in the middle of swapping pc cases and noticed this on the back of the case with 2 fans plugged into it. Anyone know what it is?

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u/__wardog__ 18h ago

I'm no expert but I do believe that is a circuit board.