Columbus External Payload Facility
The Columbus External Payload Facility (Columbus-EPF) is a component of the European Columbus module on the International Space Station (ISS). It consists of two identical L-shaped consoles attached to the starboard cone of Columbus in the zenith (top) and nadir (bottom) positions, each supporting two platforms for external payloads or payload facilities.
Source: Wikipedia — Columbus External Payload Facility (CC BY-SA 4.0)