What are ports?

The notches on module edges.

They connect to conduits and ciphers.

• A module holds up to 4: up to 2 on a one-cell module, 3 on a two-cell module, 4 on three cells or more.
• Only Normal-rarity modules roll ports when they drop or are built. Other rarities only have them through a Ports modifier.
• Higher blueprint research tiers roll more ports on builds; deeper breach tiers roll more on drops.
• Ports sit at random along the edges and turn with the module when you rotate it.
• An empty port takes no grid space. Filling one with a cipher adds the cell it points at to the module.
• A Janus adds one port to a module that has none.