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530-3478 Sun Z3 Fan PDB to Z1 Fan Backplane Cable M4000

Sun Microsystems / Oracle internal replacement Z3 Fan Power Distribution Board (PDB) to Z1 fan backplane signal cable assembly (RoHS-compliant) for SPARC Enterprise M4000 servers.


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The 530-3478 is an internal data connectivity interface module engineered to deliver cost-effective network transformation and enhanced system stability within multi-node server frameworks. Functioning as a high-reliability system interconnect unit and high-capacity internal fan power distribution layer, this Z3 fan PDB to Z1 fan backplane signal cable harness assembly slides directly into enterprise chassis backplane bays using localized connection lines. Operating under system-regulated DC power parameters across motherboard power distribution and system fan control architectures, it establishes high-efficiency routing pathways to manage internal data processing pipelines across high-density databases, continuous multi-threaded enterprise workloads, and legacy hardware consolidations. Its modular cable harness layout and fault-isolated circuit architecture manage internal bus communication cleanly, shielding core operational paths from signaling latency, packet drops, or single-point-of-failure throughput disruptions during continuous high-availability enterprise runtime operations.

Alternative Part Numbers

  • 530-3478
  • 530-3478-01
  • 530-3478-02
  • 530-3478-03
  • CA21359-B25X
  • CA21359-B251
  • CA21359-B252
  • CA21359-B253