Bittree B48DC-FNPLT/E3 M2OU12L 2x24 2RU 1/4 Inch Long-Frame Patchbay with Front Selectable TRS Audio. Spacious 2x24 jack configuration with mono (even) jack spacing and electable normalling and grounding and circuits can be easily changed via shunts under both designation strips. 2 x DS800-10SA-ASSY designation strip assemblies, "Over/Under" orientation. Mating hardware included with E3, E90, and ID (Punchdown) rear interfaces