You have to order from Dell or find a used one on Ebay, being that Dell uses a propriatory PS (reason # 58 why I hate Dell...) SRY MAN. Look on Ebay for one, or go through..........................DELL!!!!!!!! NO!! WHY OH WHY DO PEOPLE BUY DELL'S!!! OMFG, DIE DUDE, DUDE, DUDE, JUST DIE DELL DUDES!!!