Amazon
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 transmission distance 20KM Fibre type: 9/125 micrometre single-mode Port type: LC/UPC.In pairs with TL-SM321A
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 transmission distance 20KM Fibre type: 9/125 micrometre single-mode Port type: LC/UPC.In pairs with TL-SM321A