SMAKN&reg; RS232/RS485/RS422 to Ethernet Serial Device Servers Module TCP/IP/UDP Support DHCP ZLSN5103 Input voltage: DC9-24V 150mA Ethernet: 10/100 Mbps adaptive, RJ45 Protection: Built 2KV electromagnetic isolation Dimensions: 94mm * 65mm * 18mm (L * W * H)