Manufacturer: Allen-Bradley / Rockwell AutomationAllen-Bradley 1783-IMS28NAC Stratix 5410 Industrial Distribution EtherNet Gigabit Switch, 12 x 100/1000 PoE Copper Ports RJ45, 12 x 100/1000 SFP Slots, 4 x 10-Gigabit Ethernet SFP Slots, Layer 2 Access Switch, NAT, 1588, Single AC/High DC Power Supply (Supports an optional Second Power Supply), 19-inch rack mount design; One Power Supply provides 60W for PoE/PoE+; Two Power Supplies provide 185W for PoE/PoE+ (May be limited to less than 12 PoE ports depending on power available); Din Rail Mounting