Schneider Electric Modicon® Logic Controller, I/O Relay Ethernet, Series: M221™, 24 VDC, 2 A, 70/41 VA, 50/60 Hz, 40 Input, 40 Output, DHCP Client, Ethernet/IP Adapter, Modbus TCP Client, Modbus TCP Server, Modbus TCP Slave Device Communication, Memory: 256 kB, 1.2 to 115.2 kBps Transfer Rate, Plate/Panel Mount, -10 to 55 deg C, 2.76 in L x 6.30 in W x 3.54 in H