I do stuff with electronics & retrocomputing so add on top of that a bunch of USB->serial adapters to connect to old hardware; let's see Apple //e TRS-80 Mode

I do stuff with electronics & retrocomputing so add on top of that a bunch of USB->serial adapters to connect to old hardware; let's see Apple //e TRS-80 Model 100 Vt330 terminal Plusdeck 2c cassette tape deck Lego serial IR tower for RCX Serial port for self-built cheap arduino clone (an NKC electronics freeduino serial) ( http://web.archive.org/web/20100131051737/http://mcukits.com/2009/03/12/assembling-the-freeduino-serial-v10-board/ http://web.archive.org/web/20100131051737/http://mcukits.com... ) cable to connect TI calculators (I have a USB version of this too, though, so I don't need to use a USB-to-serial converter with my old serial cable based one.) And that's just what comes to mind right now, I'm sure there are more.