MagSafe to MagSafe 2 Converter In the Box - Apple MagSafe to MagSafe 2 Converter Compatibility - 24-inch Apple LED Cinema Display, 27-inch Apple LED Cinema Display, Apple Thunderbolt Display, Apple 45W MagSafe Power Adapter, Apple 85W MagSafe Power Adapter, MacBook Pro with Retina display, MacBook Air with MagSafe 2 power port