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. Converter Features 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 Compatible Mac models: MacBook Air (13-inch, Early 2015 - 2017), MacBook Air (11-inch, Early 2015), MacBook Pro (Retina, 13-inch, Late 2012 - 2015), MacBook Pro (Retina, 15-inch, Mid 2012 - 2015)