The SFPGLCSXMMST is Cisco® compatible gigabit fiber SFP transceiver module MM LC - 550m (1804ft) is built to comply with MSA (multi-sourcing agreement) standards to offer a cost-effective way to add, replace or upgrade a multimode LC port on your gigabit fiber networking equipment or fiber media converter. Supporting data rates up to 1.25Gbps, this LC 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.