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)