is my 360 a jasper?

i just got it back from microsoft and it wasnt before and i think it is cause the date is 2009-08-21 so it was made in august, also it says 12.1V and where you plug in the power the gold prongs are wider.

Yes, it's a Jasper. It's much quieter and cooler.

Well, I don't know about yours, mine barely makes a noise compared to the old 360 I had. You shouldn't worry though, since you have the Jasper now, RROD is pretty much behind you now.