The red and black from the interface cable connects to the red and black in your picture above. You should have received 4 of the little square 2 port connectors, as Matt pictured above where the green and black wires connect to. If you purchased Hypertherm 65 from us then the Raw Arc Voltage wires have been connected to the inside of this unit, look at the back of the unit and you should see a small gray cable coming out the back of the unit. This cable has a single pair of red and black wires inside the shielding that will connect to the red and black wires on the VFC box. If you did not buy the plasma cutter from us then follow the diagram that I attached previously, and use your own pair of 16 or 18 gauge wires to make the connections.