what are these?

[Brian Lanning]

http://cgi.ebay.com/2-VINTAGE-EXTERNAL-5-25-FLOPPY-DRIVES_W0QQitemZ200353772286QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item2ea603f2fe&_trksid=p3286.c0.m14&_trkparms=65%3A10|66%3A2|39%3A1|240%3A1318|301%3A0|293%3A1|294%3A50


One looks like the single sided floppy drives that came with the 5150.
 The other looks like it's from another planet.  I originally though
it was a QIC tape drive, but the shot inside the drive opening shows
the slots along the side to hold the floppy disks.