Mitsubishi Q04UDVCPU Universal Programmable Logic Controller (PLC) CPU Unit – (MELSEC-Q Series (QnU)) – 40Ksteps / 160KBytes (Program) Memory Capacity – 4096 x I/O Points Connection Capacity – with USB Connector + RJ45 Port (10/100Mbit Ethernet) – with Ethernet Communication Capability – 5V DC Supply Voltage (from a dedicated Q Series Power Supply) – Backplane/Rack Mounting