- Does the RB260GS support this SFP?
- Does Mikrotik provide a WDM Bi-Directional SFP Module supported by the RB260GS?
There is https://mikrotik.com/product/S-3553LC20D. It's in the list, and supported by the RB260.I also scrolled through https://mikrotik.com/products/group/interfaces, but could not see any WDM Bidi modules.