Difference bewteen two Asus A7N266-VM boards

[RanDum72]

Newegg has two versions. link.
One is the regular A7N266-VM, the other is AA (AMD Assurance version). Now what's the differece bewteen the two besides $10?

 

[numark]

From what I can see at AMD and Asus's site, the AMD Assured version is subjected to a variety of tests to ensure stability, at which point the box gets a small little seal that certifies it as part of the program. The non-Assurance version was probably manufactured before the testing, and thus is cheaper mainly because it's older.