This is a Magsafe1 adapter， it is only compatible with the MacBook and MacBook Pro sold from June 2012 and BeforeFeatures:- Double chipset innovation provides constant true voltage automatically with low consumption.- Built with input/output overvoltage protection， input/output overcurrent protection， over temperatureprotection， over power protection and short circuit protection.Specification:Product name： AC adapter For MacbookPower：60WInput：AC 100~240V 1.5A (50~60Hz)Output：16.5V / 3.5ATip Size：5PIN MagSafe1 L-TipFit for Brand：For AppleDimension ：74*74*28mm(L*W*H)Net Weight：210GLength of output power cord：120cmPacking：1xpower adapter with US Plug +Regular Paper box+Bubble bag