What does FIS sell?

Excuse me, I was wondering if you could clarify something for me. Could you explain in detail what exactly does FIS offer for sale? I'm a bit confused about their product offerings and how they fit into the broader cryptocurrency and finance landscape. Specifically, I'm interested in knowing if they sell digital currencies, financial services, or both? Additionally, could you elaborate on any unique selling points or features that set FIS apart from its competitors in this space? Thank you in advance for your clarification.