Will this BTX PSU fit my Dimension 4700?

Here's the link to the cheapest BTX PSU over 500W that i need for my ATI Radeon X1550.

http://www.directron.com/psax550blk.html

I have a Dell Dimension 4700 with a BTX case and a 305W PSU. I needed a replacement with higher voltage for my video card. Thanks to all who reply!

As you may see in http://en.wikipedia.org/wiki/Comparison_of_computer_form_factors it will fit your Dell Dimension BTX case since BTX is a higher size than the ATX

It says atx/btx so it should fit provided your dell has an atx or btx psu in it at the moment. You also need to check the wiring at the mobo plug.
If it looks like this

then it wont be ok.

If, however it looks like this

then you should have no problems.

Both pictures are clickable thumbnails.