Add replace or upgrade sfp modules on gigabit fiber equipment the sfpglcsxmmst cisco compatible gigabit fiber sfp transceiver module mm lc 550m 1804 ft 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 125 gbps this lc mini gbic module can be installed into any fiber networking device with an msa or