[AdamHeard]

That is a standard 15 Pin D-sub connector.

Any electronics part supplier (mouser, jameco, digikey) will carry them and they come in many different wire connection styles (crimp wires into pins, solder cups, a clamp onto ribbon cable, connectors with wires already attached, etc..). It can be kind of overwhelming in terms of quantity of options, but any 15 pin d-sub will fit. The most universal (although not my favorite) is just plain solder cups.