1x 6-port Expansion Board
1x 8-port Expansion Board
1x 12-port Expansion Board
1x AA Battery Pack (Requires 3x AA Batteries)
Important things to note:
Laying cables in between and underneath bricks
Cables can fit in between and underneath LEGO® bricks, plates, and tiles
providing they are laid correctly between the LEGO® studs. Do NOT
forcefully join LEGO® together around cables; instead ensure they are
laying comfortably in between each stud.