I bought the said adapter a few months ago for my Mac mini. Now, I have DVI and just use the adapter that came with the computer. I am thinking of just selling the adapter, but then something else came to mind. Next year I am planning to buy a new MacBook Pro for college (going into Senior year of high school in September) and was wondering if I would need it like to connect to an in-class projector, monitor or something. Any advice? College students chime in!