I see. If that's the case, i think i should be getting APW3. As for power cord, is there any difference for power cords? I always thought that power cords are all the same.
The PSU end of the power cord is a standard IEC-13 connector. The wall end.... depends on what country you are in. There are a lot of flavors for the >200v plugs.
The wall end also can depend a lot also worth mentioning a lot will change based on what PDU you use (assuming you use one). Not all PDU's use the same connector going into them so it's worth looking at when buying a PDU. I personally have PDUs between miners and wall in all 240 connection's I have.
It is worth noting you can find some decent to great deals on PDU's on ebay from time to time. I owe phil for one he told me about once. But if your ever in market for PDU check ebay a lot as it tends to change on what is best deal.