For mounting up to three power or communication devices at one location inline and offset with 5400 Series Raceway. For use with 5507 Series Faceplates, Ortronics TracJack and Series II Modules, Pass and Seymour Activate Series Inserts, Wiremold Open System Communication Modules. NOTE: CM-EPLA End Plates are required when using Wiremold communication modules. S2-EPL End Plates are required when using Orthonics Series II Inserts. To mount TracJack inserts, use 5507-4TJ or 5507-6TJ Faceplates. White