Duplex LC Senior/Senior Fiber Adapter Black With Artic White Module, TIA/EIA-604 FOCIS-10 compatible adapters, Exceed TIA/EIA-568-B.3 requirements, Small form factor (SFF) duplex adapter design fits into single module space, Compatible with Mini-Com products for complete modularity, Provide a FOCIS-10 senior adapter interface at each end, Accept FOCIS-10 compatible senior LC connectors, Choice of phosphor bronze or zirconia ceramic split sleeves to fit specific network requirements, zirconia ceramic split sleeves are recommended for OM3 multimode and OS1/OS2 singlemode applications, Every adapter is laser marked with Q.C. number to assure 100 percent traceability, LC simplex and duplex adapters are also available separately, and in patch panels or fiber adapter panels to provide a complete LC system solution.