... mainboard/(integrated sound card/graphic card /10-100M network card)Power supplyAC110V-240V ,50H-60HZ customizedNetwork connectorRJ45 connector and inner network connection, wireless network cardOperation systemWindows2000/XP ... ; magnetic-proofPackingFoam, carton, wooden box.Optional devicesthermal /laser printer, card reader, coin acceptor, cashcode cash acceptor,stainless keyboard, barcode reader ...