Black Market Large Credit Case

Black Market Large Credit Case is a prototype class 5 credit lockbox. Upon use, these boxes award credit 2918-6635.

Source
Black Market Large Credit Cases can be obtained through the Crew Skills Slicing or Treasure Hunting. They can be harvested from Electronic Brains on ??, which requires level ?? Slicing, or from level 41-48 Slicing or Treasure Hunting missions.