Input: 100-240V 50/60 Hz Output: 16.5V 3.65ACOMPATIBILITY: Replacement charger AC Power adapter for MacBook Pro 13 inch Released before Mid 2012:MacBook Pro (13-inch, Mid 2012),MacBook Pro (13-inch, Late 2011),MacBook Pro (13-inch, Early 2011),MacBook Pro (13-inch, Mid 2010),MacBook Pro(13-inch, Mid 2010),MacBook Pro(13-inch, Late 2009),fits A1344,A1330,A1342,A1278,A1185,A1184,A1181.
Fully compatible: Compatible with Mac Book air(13 inch, Mid 2011),Compatible with Mac Book air(11 inch, Mid 2011), Compatible with Mac Book air(13 inch, Late 2010),Compatible with Mac Book air(11 inch, Late 2010), Mac Book air(13 inch Mid 2009), Compatible withMac Book air(13 inch, Late 2008), Compatible withMac Book air(13 inch, early 2008). part Number: A1237 A1244 A1304 A1369 A1370 A1374
Note:This is the first generation of magsafe power adapter(L-Shape), not the second generation