1) Good quality 34 W power adapter 2) With CE,UL,FCC,GS,CB,C-TICK,CEC,ROHS 3) ... Over voltage protection Safety standard: * EN60950-1: 2001/IEC60950-1* UL60950-1* ESD(EN55024:1998+A1:2001+A2:2003)* ... /NZS CISPR 22: 2002)* SAA(AS/NZS60950.1~2003)* GS(EN60950-1:2001+ALL)* EK(K60950)* Safety certificate: CE ... (EMC,LVD),UL,FCC,TUV-GS,CB,C-TICK ...