Equip 24 Port Cat5/5e Unshielded Wallmount or Rackmount Patch Panel Capable of supporting Gigabit transfer speeds, the board is backward compatible with CAT3, CAT4, and CAT5 cable Certified for 100 Mhz CAT5/5e, which are necessary for Copper Gigabit Ethernet Compliant with ANSI/TIA/EIA 568 standard IDC color T568A/T568B coded It is a 19" 1 U Ethernet patch panel for installation in equipment racks