Description
The Cisco N9K-PAC-3000W-B is a high-performance 3000-watt AC power supply designed for the modular Cisco Nexus 9500 Series switches. This module is a “port-side intake” (back-to-front) unit, specifically engineered to support the power-intensive requirements of high-density 10/40/100 Gigabit Ethernet data center environments.
Key Features and Performance
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High Power Capacity: Delivers up to 3000W of reliable power on high-line voltage (200–240V AC), ensuring that fully populated chassis with high-performance line cards operate at peak efficiency.
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80 PLUS Platinum Efficiency: Certified for over 94% efficiency at typical workloads. This minimizes power wastage and reduces heat generation, helping to lower overall data center cooling costs.
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Optimized Cooling (Port-Side Intake): Features a front-to-back airflow design (Port-Side Intake), which is critical for maintaining consistent operating temperatures within modern “hot-aisle/cold-aisle” rack configurations.
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Hot-Swappable & Redundant: Supports seamless replacement while the switch is running. It can be configured in N+1 or N+N redundancy modes, protecting the network against power supply or grid failures.
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Future-Proofing: Provides the power headroom necessary to scale your network as you add more line cards or upgrade to higher-bandwidth modules in the future.
Technical Specifications
| Attribute | Detail |
| Max Power Capacity | 3000 Watts |
| Input Voltage Range | 200V – 240V AC |
| Input Frequency | 50 – 60 Hz |
| Efficiency Rating | 80 PLUS Platinum (>94% at 50% load) |
| Airflow Direction | Port-Side Intake (Front-to-Back) |
| Weight | ~6.2 lbs (2.8 kg) |
| MTBF | Over 860,000 hours |
Device Compatibility
The N9K-PAC-3000W-B is purpose-built for the Cisco Nexus 9500 Series modular chassis:
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Nexus 9504: Supports up to 4 power supplies.
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Nexus 9508: Supports up to 8 power supplies.
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Nexus 9516: Supports up to 10 power supplies.






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