|Unless you forced it or broke it (Meaning your PS2 modem's hard drive plugs, then you are a complete liar. this design does NOT fit. Unscrew the modems shiny plate and see if the IDE and Molex power connector's little piece of circuit board. If it's not broke then I stand corrected and would like a picture of it but I'd rather not give out my email right now as you're probably annoyed and want to sign me up for every type of gross spam imaginable. I'll stop there. just look to see if a part of circuit board is broken between the power part and the IDE part, thats the only reason I can think of for you saying it fit's unless it's been repackaged in which you should take it to the manufacturer or call them about it as it may be a fake product and you should report it before it burns out, but it may not matter. Just see if the things broken in the spot. and if not, report it to the western digital people asap, since falsified hd's fail fast and work really poorly. I'm talking too much, but do like I said please.