To help you avoid confusion each time you need to re-assign your network wiring, we've color-coordinated our Jack Frame, Telephone/Computer Icons and Keystone Jacks. Best of all, these items are easily installed: Just snap them into place. Our Keystone Jack are Category 5 and UL approved, available in unshielded, shielded and fully shielded options. Wiring: T568A and T568B (AT&T) options.