The DC plug of the 85-watt MagSafe 2 power adapter is held in place by a magnetic connection. This way, if someone trips over the cable, it will come off without a problem, and the MacBook Pro will stay securely in place. Of course, this also helps preserve the integrity of the cable. Another advantage of the magnetic connector is that it fits precisely, quickly and stably on the computer socket.

The establishment of a stable connection is indicated by the light of the LED on the connector head. The LED lights yellow when the computer is charging, and the green light turns on when the battery is fully charged. You can bridge longer distances with the AC network cable that comes with the adapter, and the AC wall plug adapter that is also included makes using the computer while traveling even more convenient.

Part of the ingenious design of the network adapter, which promises to be the perfect travel companion, is that the cable can be wound and attached to the adapter.

The adapter continuously charges the lithium-polymer battery – both when the system is on, off and in sleep mode. You can also operate your computer directly from a network with it.

Compatible with MacBook Pro laptops with Retina display.

It is important to know the exact model of your Mac. If you're running OS X Lion (10.7) or later, select "About My Mac" from the "" menu in the upper left corner of the screen, and click the "More Info..." button. In the dialog box that appears, you can see what and how many generations of Mac models you have.