S-4554LC80D is a pair of modules, that includes one S-45LC80D (1.25G SM 80km TX 1490nm/ RX 1550nm, Single LC connector) module and one S-54LC80D (1.25G SM 80km TX 1550nm / RX 1490nm,Single LC connector) module.
All modules are Industrial temperature grade (-40°C to +85°C) and are compatible with all MikroTik products, that have SFP or SFP+ cages.
