Intel Desktop Board 01 21 B6 E1 E2 Er Verified ⇒ <LEGIT>

Based on the alphanumeric string you provided ( 01 21 B6 E1 E2 ER ), this does not correspond to a standard Intel model number (like DG965WH or DQ45CB). Instead, this string is a or BIOS ID typically found on a sticker on the BIOS chip itself or printed on the PCB near the memory slots/PCIe slot.

Intel desktop boards (discontinued since ~2013) used a combination of: intel desktop board 01 21 b6 e1 e2 er