Apple 85W MagSafe 2 MD506B/A Apple 85W MagSafe 2 MD506B/A Macbook Laptop Charger Air features a magnetic DC connector that ensures your power cable will disconnect if it experiences undue strain and helps prevent fraying or weakening of the cables over time. more info Apple 85W MagSafe 2 MD506B/A In addition, the magnetic DC helps guide the plug into the system for a quick and secure connection.
