If you haven't figured out already from the other reviews....definitely don't buy this model specifically and I'd say don't buy anything made by Western Digital.I had this up and running about 9 mos...used it to clean off an old computer. Accessed it maybe 6x over that 9 months, then when I went to use it again...wouldn't power up.I did not even leave this plugged in all of the time...but power supply still went bad.Like all other negative reviews you will read, customer service was not responsive only saying that I was past the 30 day warranty.They did offer to sell me a new power supply (yes they were apparently in stock as of 11/6/09) for about $19 delivered...but when I asked they said this new power cord had 'no warranty' of any type.So...my solution was to go out and buy a new housing with it's own power supply ($30)and transfer the guts of the hard drive to it's new home. Hopefully the HD itself won't go bad or all my data will be gone.