Someone asked about the boxes the TurboDuos came in:
All the boxes were the same (silver / grey), though it is possible that TTi stuck different promotional "stickers" on the standard box every now and then to generate interest in retail stores.
My box, for example, has a band of pictures and text that highlight all the pack-in software that is bundled with the system. I can't remember if it is printed on the box itself or simply a big sticker that is adhered to the box iteself.