​​Understanding the CP-7861-3PW-NA-K9=​​

The ​​CP-7861-3PW-NA-K9=​​ is a ​​3.6kW AC Power Supply Module​​ designed for the Cisco Catalyst 7800 Series chassis. It delivers scalable power redundancy and efficiency for mission-critical network deployments, such as enterprise core switches and high-performance data centers.

​​Technical Specifications at a Glance​​

• ​​Power Output​​: 3600W (3.6kW) with 100–240V AC input, auto-sensing voltage.
• ​​Compatibility​​: Exclusively built for Cisco Catalyst 7800 Series chassis (e.g., C7800-72CQ, C7800-32C).
• ​​Redundancy​​: Supports N+1 configurations for uninterrupted operation during power supply failures.
• ​​Efficiency​​: Complies with ​​80 PLUS Platinum standards​​, achieving up to 94% energy efficiency.
• ​​Hot-Swappable​​: Enables replacement without disrupting chassis operations.

​​Why the CP-7861-3PW-NA-K9= Matters for High-Density Networks​​

​​1. Powering Next-Gen Line Cards​​
The 3.6kW output supports energy-hungry modules like 400G line cards, ensuring seamless performance for bandwidth-intensive applications, including AI/ML workloads and 5G backhaul.

​​2. Adaptive Load Balancing​​
Intelligent power distribution adjusts to real-time demands, prioritizing critical components and preventing overloads during peak usage.

​​3. Space Efficiency​​
Unlike bulkier legacy power supplies, this module integrates into the Catalyst 7800 chassis without requiring additional rack space, ideal for compact data center environments.

​​User Questions Resolved​​

​​Q: Is this module backward-compatible with Cisco Catalyst 6800 or 6500 Series chassis?​​
No. The CP-7861-3PW-NA-K9= is engineered specifically for the 7800 Series. For older chassis, consider power supplies like the CP-6871-3PW-NA-K9=.

​​Q: How does it differ from the 3kW CP-6851-3PW-NA-K9=?​​
The CP-7861-3PW-NA-K9= offers ​​20% higher power output (3.6kW vs. 3kW)​​ and targets advanced 7800 Series deployments requiring higher throughput and redundancy.

​​Sourcing Authentic Modules​​

Reliable operation depends on using genuine Cisco hardware. Purchase the CP-7861-3PW-NA-K9= from itmall.sale to avoid counterfeit risks and ensure warranty validity.

​​Final Perspective​​

The CP-7861-3PW-NA-K9= isn’t just a component—it’s a cornerstone for networks transitioning to high-density, low-latency architectures. Its ability to balance power efficiency with scalability makes it indispensable, though its benefits hinge on strict compatibility with Catalyst 7800 systems. Organizations prioritizing uptime and future readiness should integrate this module early in their infrastructure planning, but always pair it with verified sourcing channels to safeguard performance and longevity.