Item Type: Ethernet Serial Server Material: PC + ABS Model: PG46-GL-H Voltage Input: 100-240VAC Frequency: 50/60HZ Package List 1 x Ethernet Serial Server 1 x Antenna 1 x User Manual Please use within the voltage range parameter. 1Can be easily installed by rail mounting, this serial server is an excellent solution to serial device cellular networking. 2With VPN and APN function, also supports 4G to wired network, 4G to the server and wired network to the server. 3Under the wide working voltage range of AC 100 to 240V, this Ethernet serial server will work with stablity and safety. 4The serial server supports 13 frequencies in 5 modes as well, which enables faster and more efficient data processing. 5Based on the existing operator network, the server is designed to have a wider coverage, very convenient to use.