Here's what I've heard and know: The new 15" MBP should be fine -- in fact to date has the best power at the port of any other option, PC or Mac. I know this one works fine with Phase backs. The new 17" is slightly less, but seems to work fine with Phase backs, cannot speak to other backs. 13" Macbook Pro I don't know. No FW port on the new regular Macbook, so it definitely wont work.