Okay, since we're talking hardware for the C-64/C-128, I wanted to toss out a question on a "thingy" I found a while ago.
It's called, "Handic Software 1034". This cart. expander has 3 slots, 4 white and one red(rest) switch/buttons on the back.
Anyone know what this babe is all about?
I have a dirty picture of it too, that might help you to "identify" this fella.

Have a nice one,
Xiny6581

This could be the Handic Superbox64 cartridgeport expander.

Don't have any other info about this piece of hardware tho.

Yes, that's the Handic Superbox alright.
The case is missing though (no shit Sherlock? ).
The four white buttons selects currently active port, leftmost white chooses the IEEE-slot, the rightmost selects slot 1 (which should be the innermost towards the computer).
The red button is a reset button.
There's a hole in the case for the green led but I don't know its function.

Sweetness!
Yeah, I kind of let sherlock do the work this time, Watson
Skinned to the bones, but now I know what this is all about.
Thanks for the IEEE-Slot info, that was kind what bugged me most.
Heh. Gotta find something I can use it with then.
/Xiny6581