This string holds the intId — an internal identifier UCS Manager's capability-catalog engine uses to reference the capability-catalog override rule that changes how UCS Manager's hardware-discovery logic classifies or constrains one specific DIMM part during blade inventory — distinct from any customer-facing name. intId is mainly for UCS Manager's own internal bookkeeping rather than something an admin types in directly, but it becomes the key to hand over when working with a Cisco TAC engineer explaining why a specific DIMM discovery override behaves the way it does. A value like 'MEM-MOD-0417' as the intId would be Cisco's internal catalog key for this specific entry, not something displayed under a friendly name in the UCS Manager GUI.