... *106mm160mm *106mm218mm *106mm Size of Case 273mm*228mm*65mm Power Supply 12VDC 4-7A Power Consumption of Circuit Board Less than 100mA ... Remark: N denotes q ' ty of computer serial prot or q ' ty of 485hub port, support 256pcs ports Operation Temperature - ... on net coverage area Collocations PCB board, case, power, power line, serial port communication line, software, manual, certificate, key(2pcs), ...