I suppose I have one of these things, and really want to make it go away. This is apparently a late 1980s precursor of the PCMCIA card - about the same size, but the connections are different. Anyway, this little "drive" (officially a TCD/1-E from Databook) is mounted in a cradle, so it fits into a 5 1/4 half height bay. I have no idea what the interface is. Tagged "Not for Life Support or Nuclear Use". So, anyone want this thing for a buck and postage? William Donzelli aw288(a)osfn.org