ST Simplex Fiber Adapter With Black Module, Phosphor, TIA/EIA-604 FOCIS-2 compatible adapters, Exceed TIA/EIA-568-B.3 requirements, Compatible with Mini-Com products for complete modularity, 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, Mini-Com ST Simplex Adapter Modules are commonly used with Mini-Com Patch Panels, ST simplex adapters are also available separately, and in patch panels or fiber adapter panels to provide a complete ST system solution.