And now for a little lesson on the reason behind the replacement XBOX power cords...
Basically, there have been a few suppliers of the power supply that runs the XBOX. One of them was produced by Foxlink, poorly. You see, as in the picture below, the jack for the power cord is attached only to the main PCB by solder. To the left and right of the pins that are soldered to the PCB are holes in which all the other manufacturers of power supply used to secure the jack to the PCB. The problem that is created is when you plug and unplug the power cord a number of times the solder joints can crack and cause arcing (sparks) which can lead to fire.
Now that you're informed, you've got some decisions to make. As I see it you've got a few options.
A) Open your XBOX, take a look at the power supply. It might not be a Foxlink in which case you don't need the "special" cord
B) Open your XBOX, replace the power supply with a non-Foxlink power supply
C) Open your Xbox, reinforce the power jack with epoxy or something similar
D) Don't open your XBOX, replace the cord with another of the ones distributed by M$ to "fix" the Foxlink fire epidemic
E) Don't open your XBOX, use a normal (non GFCI) cord but don't plug/unplug or generally mess with the cord
There may be some other options I haven't thought of, IDK...
Personally, I'd stick with A/B or D. Really, the GFCI M$ sent out is a BandAid for a broken bone. The risk of fire is reduced but is still higher than replacing the root of the problem, the power supply.
Disclaimer:
I may be an electrician for the US Army, which requires far less knowledge than to be one in the civilian world but does require a basic knowledge of electricity but I take no responsibility for the decision you make based on the information provided.
