NOT ONLY FOR GAMING

You can use you Gamebuino as an interface for any electronic system: as a controller, a monitor, a data-logger, a console, or whatever. Connect it with your computer, your 3D printer, or your last robotic project… the only limit is your imagination!
Gamebuino is compatible with any I2C module. You can find some of them from Seeed studio’s Grove system or Tinkerkit.

http://www.seeedstudio.com/wiki/GROVE_System

BlackHat Asia USB Physical Access | NCC Group
Physical access is no longer a requirement to trigger Windows USB bugs
https://www.nccgroup.com/media/481258/usb_physical_access_andy_davis_ncc_group_slides_updated.pdf