Can I ask a question - may sound stupid - but I know - no questions are stupid! what all do you put on this unit? what all do you backup - and how do you do it? I always hear about backing a system up and I honestly have no clue what exactly is to be backed up! I always burn my important files that I've downloaded - things that I don't want to lose. but I've never understood backing programs up and the operating system. ????? thanks! cris ----- Original Message ----- From: ~OoO~ Well, the model I have is specifically USB 2.0. Its also the cheapest of the group. They also have the same unit under a different model number, difference being connectivity. One uses firewire. Another allows both Firewire or USB. But, mine is only USB. Also... the one I have is only for hard drives. They have the other units, which allow for a hard drive or optical drive. The difference being, of course, that you'll be able to remove the front cover or plate so that the optical drives can have their doors slide out. If you want specifics, I can give you the exact model numbers of which does which. Directron is who I purchased from because they came out the overall cheapest for 2 units to New York (low shipping, no tax). ---Troth To unsub or change your email settings: //www.freelists.org/webpage/pctechtalk To access our Archives: http://groups.yahoo.com/group/PCTechTalk/messages/ //www.freelists.org/archives/pctechtalk/ For more info: //www.freelists.org/cgi-bin/list?list_id=pctechtalk