It certainly looks like a standard ATX PSU. Here are the measurements of a standard ATX PSU: 150Wx140Dx86H;
there is a PS3 form factor that is the same except for only 100mm deep; the SFX is 125Wx100Dx76.4(H) including the protruding fan housing.
. There are others, but these are the most common.
. And it wouldn't hurt, Soviet, to learn how to create a link in the AT Forums, so that ungodly long URL wouldn't bend the forum pages all out of shape. Here's the format: OSB (open bracket, [ )L= Descriptive Title CB(close bkt, ] ) URL OB /L CB, with no spaces except what you include in the "Descriptive Title" and/or the URL . Below is how it looks done properly:
Soviet's Link
.bh.
:sun: