@nubiann ...so I use one TP optical converter fed by a short, high quality industry standard Cat7 cable from my router, then Finisar SFP module out of the converter via Corning single mode Optical Fiber all the way to my Lumin X1 via matching Finisar SFP module. I power the TP Link with a IFI Clean Power PSU and my results are superb.
One conversion One standalone Box One quality PSU.
Nope, you still have TWO electrical signal ↔ light pulse conversions. X1 has a fiber network port setup to take care of media converter and psu BUT you still see two conversions performed in each SFP transceiver.
Light ↔ electrical photoelectric conversion is done in the SFP transceiver, not in the media converter (box you mean by) itself.

