Need one more 100 Mbit/s ethernet port. I try plug in this S-RJ01 cooper in to RB2011UAS and change speed on 100 Mbit/s , but it still does not work on 100 mbit. Why i don't understand.... Why mikrotik produce SFP cooper 10/100/1000 Mbit/s if he can't work on 10 and 100 mbit?

Hi i try to use RB260GS + S-RJ01 but this device work just on 1G, but i need 100 Mbit/s. Who knows how
to make it work S-RJ01 on 100 Mbit/s ???