Originally Posted by atomarchio
What do you mean by wall warts?
Transformers you plug into a 120V AC wall outlet with a cord that runs to the equipment itself carrying lower voltage, sometimes AC, usually converted to DC.
They're the things that are always just enough too big to let you use all of your outlets.
And when plugged in, you've got a dark, unattractive lump on the wall, hence the name.