Gilded Large Credit Case

Gilded Large Credit Case is a prototype class 4 credit lockbox. Upon use, these boxes award credit 2684-4145.

Source
Gilded Large Credit Cases can be obtained through the Crew Skill Slicing. They can be harvested from Holographic Microcomputers on Alderaan, Balmorra (Republic), and Taris (Empire) and Quesh, which requires level 205 Slicing, or from level 33-40 Slicing missions.