
I had a case with 5 fans and only 4 connectors on the motherboard to connect them. Fan with Molex input (old PC power connector) to connect them all, but I only had one Molex connector on my PSU and it was too short. I could either buy a molex extender or a splitter. In my case, the splitter was MUCH smaller than the cables, so I used a splitter and simply split one of the fans on my motherboard in two. It hasn't blown up my computer so far, so I'm happy.

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