The SFPGLCLHSMST Cisco Compatible Gigabit Fiber SFP Transceiver Module SM LC – 10 km (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 1.25 Gbps, 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 & scalability, this fiber transceiver is fully hot-pluggable, which enables you to install the module without interrupting network traffic or requiring a device reboot.