Intel Desktop Board 21 B6 E1 E2 Manual |verified| -
) is not a specific motherboard model name, but rather a regulatory or industry specification marking. Because of this, a single official manual for "21 B6 E1 E2" does not exist.
: Supports 2nd and 3rd Gen Intel Core processors, Intel B75 Express Chipset, and dual-channel DDR3 memory. Intel® Desktop Board DH77EB Manual Type Technical Product Specification (TPS) Intel Desktop Board 21 B6 E1 E2 Manual