This papercraft is a EDI (Enhanced Defense Intelligence), an AI created by Cerberus and installed aboard the Normandy SR-2, based on the game Mass Effect 3, the paper model was scaled to XenonRay's Mass Effect model by DaiShi. There is also a Life Size Version on the site, and a EDI Headpiece Papercraft available.
About this paper model:
Size: 435 mm high
You can download this papercraft model here: Mass Effect 3 - EDI Ver.2 Free Papercraft Download