TP-Link TL-SM321B 1000Base-BX WDM Bi-Directional SFP Module
WDM Bi-Directional SFP module, internal +3.3 V power supply Supports WDM Bi-Directional technology, using a single strand of fibre, cost saving Maximum cable length: 10 km Fibre type: 9/125 micrometre single-mode Port type: LC/U
