Thinking of getting an ADOT Fibre Optic Gigabit Network Conversion Kit for my Hi-Fi for between my final switch and Linn Selekt DSM. 

The kits themselves are very expensive, but look similar to the MC200MC product. 

Some questions:

Are they essentially the same product but branded with the usual Hi-Fi mark up?

Has anyone got this set up and what are your thoughts?

I appreciate that I might not have the right terms and you may have more questions as this is all new to me. 
 

Thanks in advance. 
 

DG…