Apple MacBook Pro with Retina display 85W MagSafe 2 Power Adapter

The 85W MagSafe 2 Power Adapter features a magnetic DC connector so if someone trips over it, the lead disconnects harmlessly and your MacBook Pro stays put safely. It also helps prevent fraying or weakening of the cables over time. In addition, the magnetic DC helps guide the plug into the system for a quick and secure connection. When the connection is secure, an LED located at the head of the DC connector lights up. An amber light lets you know that your notebook is charging, while a green light tells you that you have full charge.