... switch,keyboardswitch,dip switch and so on;2.Power sockets: a.IIEC sockets:snap-in,screw ... screw-on for PCB,b.2 pin AC power socketc.3pin ac power socket/mickey socket 3.Travel adaptor ... traveladaptor plug and so on;4.power plug /power cord according to the customer's request .5.Industrial ... socket :German,France,British and so on 0.5A 30V DC ...