PWR-3900-AC Cisco 3900 Series AC Power Supply

The PWR-3900-AC 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 power unit and high-capacity electrical conversion management layer, this AC router power supply assembly slides directly into enterprise chassis backplane bays using localized connection lines. Operating under system-regulated DC power parameters across multi-channel system power 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 power layout and fault-isolated power supply 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

• PWR-3900-AC
• PWR-3900-AC=
• 341-0322-01
• 341-0322-02
• PWR-3900-AC/2
• PWR-3900-AC-RF
• 341-0322-03
• PWR-3900-POE

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