Allen Tel Products AT55B-PNL-24 24 Ports, 568A / 568B Wiring, 1 Rack Unit, 110 Termination Category 5e Patch Panel Exceeds TIA/EIA Category 5e standard ETL tested and approved for Category 5e channel compliance 110 termination; Wire management on rear of panel Universal wiring for either 568A or 568B Includes AT55CSB cable support bars; UL Listed and CSA Listed