The SFPGLCLHSMST is Cisco compatible gigabit fiber SFP transceiver module SM LC - 10km (6.2 miles) is built to comply with MSA (multi-sourcing agreement) standards to offer a cost-effective way to add, replace or upgrade a single-mode LC port on your gigabit fiber networking equipment or fiber media converter. Supporting data rates up to 1.25Gbps, this LC SFP/Mini-GBIC module can be installed into any fiber networking device with an MSA or Cisco compliant SFP port. Delivering both convenience and scalability, this fiber transceiver is fully hot-pluggable, which enables you to install the module without interrupting network traffic or requiring a device reboot.