om3, multimode, LC-LC OM3 Multimode Fibre Optic Patch Leads connectors use a 1.25mm ceramic ferrule, and our leads are immune to electromagnetic and radio frequency interference. We have several lengths of LC-LC OM3 Multimode Fibre Optic Patch Leads including 1 metre, 2 metre, 3 metre, 5 metre and 10 metre.