Allen-Bradley 1769-L24ER-QB1B CompactLogix 5370 L2 Controllers | JUAL Allen-Bradley 1769-L24ER-QB1B CompactLogix 5370 L2 Controllers CompactLogix 5370 L2 Controller, 2 EtherNet/IP ports with Device Level Ring Capability, 750KB Memory, 16 DC Inputs, 16 DC Outputs, Up To 4 1769 I/O Expansion Modules, 8 EtherNet/IP and 120 TCP Connections, 24V DC Input Embedded Power Supply,With 1GB SD Card, Can Support Up To 2GB SD Card, 1 USB Port.