TP-Link ISM311LS. SFP transceiver type: Fiber optic, Maximum data transfer rate: 1250 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

ISM311LS is an industrial SFP Module introduced for extending transfer distance. Attached to our industrial switches, ISM311LS can extend the distance to 20km. Users can choose whether and which items to use the fiber modules according to the demand in order to lower cost.