This Apple compatible 60w charger has the Magsafe 2 magnetic connector which protects the 60w power adapter and the MacBook 13 inch Retina display computer.
The design of the Mac Magsafe 2 power adapter means that if someone walks past your MacBook Pro with Retina display while it is plugged into the mains power and kicks your Magsafe 2 mains adapter cable then because it is only connected via a magnetic link it will simply disconnect from your MacBook. This will therefore minimize undue strain on both the Magsafe 2 power port and MacBook power cable
Apple compatible 60W mains adapter will charge your MacBook battery while turned on, turned off or in sleep mode. If you have no battery fitted, then it will simply power your MacBook Pro with Retina Display.
Compatible with the MacBook Pro 13 Inch models with Retina display
Connector: 5-Pin Magsafe 2
input: 100-240V ~ 1.5A 50-60Hz
output: 16.5v 3.65a 60w
adapters: 1 x 5 PIN magnetic connector
Compatibility: MacBook Pro 13 Inch models with Retina display