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 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. This 1310nm single-mode SFP module is compatible with the Cisco GLC-LH-SM transceiver. Also a perfect accessory for the StarTech.com PCI Express Open SFP NIC (PEX1000SFP), or Gigabit POE Open SFP Media Converter (ET1110PSE) products. Backed by a StarTech.com 3-year warranty and free lifetime technical support. Replace defective or damaged MSA or Cisco SFPs. Extend your network connectivity up to 10km. Replacing defective or damaged SFPs in MSA compliant or Cisco equipment. Expand your network to remote segments.