Looks like a standard atx psu.
Measure the old and new psu to see if it will fit in the case.
Compare the plugs for each psu.
I have an hp p7-1007c desktop, with an ATX-250-12Z rev. D3R, hp part #5188-2622. it needs to be replaced. I have an hp a1483w desktop, a little older, with an ATX--300-12Z rev.CDR., hp part #5188-2625, that I'd like to use in place of the first mentioned power supply. Will the older, 300w power supply fit in the p7-1007c, and will it be ok?