Yes the Dynasty cable has four wires vs. the other machines having three wires but I don't have three phase in my garage so I'm not using the fourth wire per Miller's procedures.
Looking at the gage of wires I would assume the Millermatic DVI-2 would be closest choice with them both being 12GA and almost the same length but I wanted to run it by this board. Another question is the power cable user replaceable?
Dynasty 200 DX - Part# 196727 - CABLE, POWER 10 FT 12GA 4C BLK/RED/WHT/GRNYEL
Miller Passport - Part# 220916 - CABLE, power 10 ft 14ga 3c soow w/spl plug
Millermatic 211 - Part# 239588 - CABLE, power 7ft 12GA 4C
Millermatic DVI-2 - Part# 219257 - CABLE, POWER 12 FT 5 IN 12GA 4C SOOW W/SPL PLUG