A 1U patch panel holds up to 24 duplex connectors using standard connectors. In this comprehensive guide, we'll explore. UHDX ultra high-density fiber patch panels patch up to 144 LC fibers per RU to provide an inter-connect or cross-connect between backbone horizontal cable and active equipment while minimizing rack space in a frame or cabinet. HDX panels offer manageable density of up to 96 LC fibers per RU with. FS offers FHD® FAPs and FHU™ 1U fiber patch panel with LC, SC, MTP®/MPO connectors in singlemode/multimode fiber to deploy medium for high-density fiber optic network applications.