4-pin header at the end PSU molex cable

Brian_165

Commendable
Oct 14, 2016
9
0
1,510
There's a 4-pin header like the ones found on fans that sits at the end of my PSU's 4-pin molex cable. First time I've seen that.

What's it for and should I plug it into the motherboard somewhere?
 
Solution
You mean like this one?

FDD-4-PIN-1-A1.png


If so, then that is used for small devices your PC may have. E.g FDD or smart card reader.

Brian_165

Commendable
Oct 14, 2016
9
0
1,510


That's the one. Thanks for clearing it up!
I've got a card reader, but it's a bit of an older model, so it only connects to the mobo USB header.