The MagSafe to MagSafe 2 Converter allows you to use the MagSafe connector on your LED Cinema Display, Thunderbolt Display, or MagSafe Power Adapter to charge your MagSafe 2-equipped Mac computer.System RequirementsCompatibility24-inch Apple LED Cinema Display27-inch Apple LED Cinema DisplayApple Thunderbolt DisplayApple 45W MagSafe Power AdapterAp..