Umbilical

From Halopedia, the Halo wiki

Umbilicals are corridors branching out from geosync SuperMAC platforms like Cairo Station to other ships that may dock to the station.

Cairo Station Umbilicals

Template:Cairo Locations During the First Battle of Earth, the Master Chief cleared the portside Umbilicals for Commander Miranda Keyes's safe passage to In Amber Clad, before moving on to shipping to get to the Covenant Bomb.