85W MagSafe 2 Power Adapter For Apple 15" 17" MacBook Pro with Retina Display
How to choose Between the MagSafe 1 Connector and MagSafe 2 Connector Any MacBook that was madeAFTER mid 2012 uses the newer MagSafe 2 connector. Any MacBook that was madeBEFORE mid 2012 uses the MagSafe 1 connector.