I have a mac plus in my collection that has something called a Hyperdrive installed in it. It's a controller card and MFM hard drive that fits behind the crt and everything actually just fits. Mine amazingly still works. Unless it was a special configuration, there was no such thing as a dual floppy SE with a hard drive. In a message dated Mon, 12 Jun 2000 12:10:15 PM Eastern Daylight Time, "Jason McBrien" &lt;jbmcb(a)hotmail.com&gt; writes: << They used to make internal hard drives for the Mac Plus that attached to the upper frame, to the side of the CRT. Someone probably kludged one into a SE case, not wanting to forego the all important second FD. I remember launching MacPaint on my Fatmac and having to swap out system disks ten or twelve times before I could doodle. Thank god for that external 400k drive, who would need more space? ----- Original Message ----- From: "R. D. Davis" &lt;rdd(a)smart.net&gt; To: &lt;classiccmp(a)classiccmp.org&gt; Sent: Saturday, June 10, 2000 12:40 PM Subject: Mac SE computers (was Re: AppleTalk)