Great to know about the requirement for the ATA 133 card so I can access the entire 200gb in my new and soon to arrive hard drive. Thanks so much for the feedback! The drive apparently ships with a controller card that allows me to access the entire 200gb. The drive transfer rate with this controller card is limited to 100 megabytes per second as opposed to 133 megabytes per second with an ATA 133 card. Question...Will my Quicksilver 933 mhz machine (purchased in 3/2002) support transfer rates as high as 133MBS? If not, I'll simply use the controller card (Promise Ultra-100TX2) that ships with the hard drive. TIA