The model number I have is MB053LL/A It has all the right words on the pkg, but software does not match what was advertised. Can't get printer to work on network and external HD is slow and locks up. I got it 10% off at the Apple Store. Is this the newest? Thanks DaveWrightI want to be sure I'm buying the new one with Gigabit Ethernet. Is there something written about Gigabit on the box or is the model number different?