• all parts labeled OBC (two bases, two walls, two windows);
• OBC board;
• fasteners (white plastic washers - 4 pcs., screws with a cylindrical head M3x8 - 4 pcs.)

1) Install the OBC board on the lower base (marked: OBC ↓)

2) Fasten board on the bottom base with M3x6 cylindrical head screws.

3) Fix the side panels to the lower base. To do this, position the side wall projections with holes in the base and snap into place.

4) Fix the two windows on the bottom base. To do this, guide each window along the guides in the walls to the base and snap into place.

5) Attach the top cover (marked: OBC ↑) to the assembled body. To do this, position the cutouts on the top cover and the protrusions of the two walls and two windows and snap into place using force.

This is how the assembled OBC module looks like: