Logic Controller, Input Voltage 24V DC, Dual-port Ethernet 1 RJ45, Ethernet port Ethernet 2 RJ45, Non isolated serial link serial RJ45 RS232/RS485, USB port mini B USB 2.0 Slots, Timers Programmable, Yes Clock, No Display Display, Port Type Dual-port Ethernet, Ethernet, Non isolated serial, USB port mini, Memory 64 MB RAM, 8 MB