Expanding your switch's capacity for networking doesn't need to be complicated. Formerly Linksys Business Series, now Cisco Small Business Network Accessories, the MFELX1 Mini-GBIC SFP Transceiver offers you the ability to connect to legacy fiber optic 100 Mbps interfaces. Installing the module is as easy as sliding it into an accompanying port on a compatible Cisco switch. Additional features of the Cisco MFELX1 Mini-GBIC SFP Transceiver include: -Faster networking in a miniGBIC format. -Easy installation. -A maximum fiber optic cable distance of 10 kilometers. -Low insertion-loss duplex LC receptacle and low electromagnetic interference.