Input: 100-240V    50/60 Hz

Output: 20 V  4.6A   85W

Apple Parts #: 

A1424 

A1434 

A1501

MD506

A1398 2012

Compatible with: 

MacBook Pro "Core i5" 2.5 13" Retina

MacBook Pro "Core i7" 2.9 13" Retina

MacBook Pro "Core i5" 2.6 13" Retina 2013

MacBook Pro "Core i7" 3.0 13" Retina 2013

MacBook Pro A1398

MacBook Pro "Core i7" 2.3 15" Retina

MacBook Pro "Core i7" 2.6 15" Retina

MacBook Pro "Core i7" 2.7 15" Retina

MacBook Pro "Core i7" 2.4 15" Retina 2013

MacBook Pro "Core i7" 2.7 15" Retina 2013

MacBook Pro "Core i7" 2.8 15" Retina 2013 

2012 to 2014 MacBook Pro 15-inch with Retina Display

For pro 15' 17' 2012-2014 Apple Magsafe 2