RJ45 Cat6 Keystone Jack - Supports T568A T568B Wiring. Color Coded For Ease Of Use. Supports 110 or Krone Dual Type Termination. Functional RJ45 Jack For Cat6, Cat5e, Cat5 - Works For All Versions Gold Plated Contact Points For Superior Performance And Quality [ UL LISTED ] Limited Lifetime Warranty & Product Support Provided By Manufacture Great For Large Environments That Require High Quality Parts For Longevity.