Maintain replacement coverage for a named 5520 switching configuration when service continuity depends on a defined advanced hardware replacement level. This service entitlement pairs a 4-hour AHR characteristic with the 5520-48SE-ACDC-BASE-TA base configuration, keeping the covered platform and service level explicitly matched. It is a service entitlement rather than a switch, power component, or software license. Extreme Networks 97007-5520-48SE-ACDC-BASE-TA records the support offering for that specified configuration. Select it when the installed equipment matches the 5520-48SE-ACDC-BASE-TA designation and the required replacement arrangement is 4-hour advanced hardware replacement. The supported-product designation is central to correct selection because this service is tied to a particular base configuration rather than serving as a general hardware replacement option. The 4-hour designation is the defining characteristic of this service level. Advanced hardware replacement addresses replacement handling for covered hardware, while the AHR designation distinguishes the entitlement from switch hardware itself. Keep the service associated with the matching 5520 base configuration when documenting installed equipment and support coverage, especially where the switch configuration includes the AC/DC base designation.