What does a P4 12V connector look like?

[Cheapparts4u]

This is a very dense question, but...

I got a PSU, which I'm not sure if it supports a P4. No manual or anything. It does have a square connector with 4 leads

::

which I'm not sure what it is, this may be the connector I'm looking for,but would like to be sure before my stuff gets here so I will know whether to order another PSU or not.

 

[Lord Evermore]

That should be the P4 connector. (Unless your PSU has some really odd random never before heard of other kind of square 4 pin connector. )

When in doubt, the manual for your motherboard may be downloadable (and if not you could just read one for some other P4 board) and see the images listed there to tell what the connector looks like.