Intel Desktop Board 21 B6 E1 E2 Specification Exclusive Info

Based on common hardware configurations associated with these markings in secondary markets, these boards typically feature:

Can you find a with a 6- or 9-digit number starting with AA on the board? 3rd-gen-core-desktop-vol-1-datasheet.pdf - Intel intel desktop board 21 b6 e1 e2 specification exclusive