It seems to be a plain old 200 series, at least the label says RO 200 series and not RO 200E series. No model number anywhere though. Curses! I didn't count and I don't want to open it up again unless I have to. I do remember that it is 'full' of platters though, and there is an arm to each surface. It's the first time I've seen a full height drive without room for an extra platter or two. Cheers, Lee. . ___________________________________________________________ To help you stay safe and secure online, we've developed the all new Yahoo! Security Centre. http://uk.security.yahoo.com