This Notebook Computer External Drive is very old school and I imagine if you found this listing you know what you're looking for.  I found it in my Dad's workshop.  He's a very neat guy so it looks like it was barely used, if at all.  The box smells vaguely like a damp basement but if you need this technology, here ya go.

There is a disc in the carrying case but the box says 'no software required' and while it has the PC Card connection, the box also indicates:  "USB Connector Available" so maybe you can figure out how to do that.  It's beyond me.