LBMC300-MMST Features Extends your network up to 220 meters (721 ft.) over 850-nm multimode fiber or a full 2 kilometers (1.2 mi.) over 1300-nm multimode fiber. Plug-and-play installation. Use as a standalone unit or rackmount in the 16-Slot LinkGain Chassis. Link Fault Pass Through (LFP) shuts down a link if the other side fails. Auto-sensing 10-/100-Mbps copper ports feature MDI/MDI-X. Must be used in pairs.