... '',19'',22'' are optional 3.CE certificate with high quality Shenzhen Langxin Electronic Co., Ltd. is one of ... HDD / Intel G41 mainboard/(integrated sound card/graphic card /10-100M network card)Power supplyAC110V-240V ,50H-60HZ customizedNetwork ... proofPackingFoam, carton, wooden box.Optional devicesthermal /laser printer, card reader, coin acceptor, cashcode cash acceptor,stainless keyboard, ...