TP-Link TL-SM311LS TP-Link Omada Gigabit SFP Module, Single-mode, ...
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The SM311LS (TL-SM311LS) Fiber Module Cards are introduced to extend transferring distance. Installed in our managed/smart switches. they can extend the distance to even tens of kilometers. which basically satisfy the distance requirement of LAN. Users can choose the fiber modules according to specific demands.