Fiber Splice Shelf, Slide-Out, 3UComparable to Corning's CSH 03U This fiber patch panel is only compatible with either our FB25 4000STP24 splice tray or FB25 3401STP36, which are sold separately. To find out more, give us a call or email us. Description Fiber Patch Panel, Slide Out Splice Shelf, 3RU, Holds 4 Splice Trays The FB23 3927RSS4 is a 3 Rack Unit (3RU) in rack splice shelf designed to support up to 96 individually spliced fibers. The fiber housing has a slide out master