The 85W MagSafe 2 Power Adapter from Apple features a magnetic DC connector, which helps guide the plug into the system for a quick and secure connection. Designed to be the perfect traveling companion, the provided AC cord offers maximum cord length, while the AC wall adapter (also provided) gives users an even easier and more compact way to travel.
•Features a magnetic DC connector so if someone should trip over it, the cord disconnects harmlessly and your MacBook Pro with Retina display stays put safely
•Helps prevent fraying or weakening of the cables over time
•Designed to be the perfect traveling companion, the adapter has a clever design which allows the DC cable to be wound neatly around itself for easy cable storage
•Adapter recharges the lithium polymer battery while the system is off, on, or in sleep mode- and powers the system if you choose to operate without a battery
•Compatible with MacBook Pro with Retina display