TP-Link ISM311LM. SFP transceiver type: Fiber optic, Maximum data transfer rate: 1.25 Mbit/s, Interface type: SFP. Product colour: Grey. Input voltage: 3.3 V. Certification: FCC, CE. Width: 56.4 mm, Depth: 13.4 mm, Height: 11 mm

ISM311LM is an industrial SFP Module introduced for extending transfer distance. Attached to our industrial switches, ISM311LM can extend the distance to 550m. Users can choose whether and which items to use the fiber modules according to the demand in order to lower cost.