How to use SFP port on Hex 2025

RouterOS Beginner Basics
13

This should be the settings in WInbox:
CRS317-1G-16S+RM HELP REQUESTED! - #18 by ConnyMercier

for the SFP+ module, but the DAC should be the same, but what is on the other end?:

Hex 2025 <-> SFP+ module<-> fiber <->?
OR:
Hex 2025 <-> DAC<->?