For TP-LINK TL-SM311LM Gigabit SFP module, Multi-mode, MiniGBIC, LC interface, Up to 550/275m distance - For Data Networking - 1 x 1000Base-SX
TP-LINK TL-SM311LM Gigabit SFP module, Multi-mode, MiniGBIC, LC interface, Up to 550/275m distance - For Data Networking - 1 x 1000Base-SX41.99 USD