Manufacturer: Allen-Bradley / Rockwell AutomationAllen Bradley 1783-HMS16TG4CGR Stratix 5400 Managed EtherNet Switch, 16 x 10/100/1000 Mbps Copper Ports and 4 x 10/100/1000 Mbps Combo Ports, 2 x Power Source Connectors, 24/48V DC Power (12-60V DC Range), Full Layer 3 Software