Yeah recently I wanted to upgrade the RAM in my computer so I bought some off ebay and it didn't work. I guess hardware is the hardest stuff to buy off ebay cause most of it is USED, and no one wants used stuff. You can't really tell if it works or not either just from a picture. I don't know where you live, but over here there is an electronic store called Fry's. They sell electronics for a pretty low price so I get my computer needs from there. The website is
www.outpost.com . Stuff is probably more priced on there because you have to pay shipping too..but who knows.