- Unique Key and Color Options: Up to thirteen unique keying options/colors for a wide range of network security systems, easy identification and network management.- Various Footprint Options: Keyed workstation adapter modules are available for TracJack® and High Density Jack (HDJ) style Face plates and surface mount boxes for complete system design flexibility.- Keyed front or Rear: Keyed LC adapters have the option to be keyed in the front only (user’s side) or on both sides (user’s and technician’s) depending on the security requirements. Internal keying feature prevents tampering- Compatibility: All Legrand keyed LC fiber products are engineered to be compatible with other Legrand products to provide an end to end, data center to desktop solution.