Cisco N9K-PAC-650W-B Full English Description

The Cisco N9K-PAC-650W-B is a hot-swappable 650W AC Field-Replaceable Unit (FRU) power supply module designed for early-generation Cisco Nexus 9000 fixed-form factor data center switches. It adoptsPort-Side Exhaust (Forward Airflow / Back-to-Front Airflow)identified by blue handle marking and achieves 80 PLUS Platinum high efficiency. This AC power module delivers stable 12VDC power output for compact leaf-spine switching platforms, suitable for enterprise data centers, colocation facilities and ACI fabric deployments powered by standard alternating current infrastructure.

650 Watt Continuous Rated Output

Delivers maximum 650W continuous 12VDC output with standby power support. Supports 1+1 redundant deployment and dynamic load sharing to eliminate single-point power outage risks for mission-critical network services.
Universal Wide-Range AC Input

Optimized for standard mains alternating current power distribution:

Input Voltage: 100 VAC ~ 240 VAC
Frequency: 50–60 Hz

Port-Side Exhaust (Forward Airflow)

Cool air enters the chassis from fabric side, and hot air exhausts out toward port side.

Important Note: All power supplies and fan modules installed within one chassis must maintain identical airflow direction. Do NOT mix PE (port-side exhaust) and PI (port-side intake) modules. AC and DC power supplies cannot be mixed in the same switch chassis.
Hot-Swap FRU Architecture

Supports online insertion and removal. Technicians can replace defective power modules without powering down the host switch, enabling non-disruptive live hardware maintenance.
Real-Time Telemetry & LED Status Indication

Front-panel LED indicators display AC input status and operational health. The module transmits temperature, voltage and fault alarm metrics to the NX-OS operating system via chassis backplane.
Multi-Layer Hardware Protection

Integrated overvoltage protection (OVP), overcurrent protection (OCP), overtemperature protection (OTP) and short-circuit protection to safeguard both the power supply and host switch hardware.
80 PLUS Platinum High Energy Efficiency

Optimized power conversion reduces power waste and thermal generation, lowering cooling energy consumption within data center environments.

Supported Hardware Platforms

Cisco Nexus 9000 Series Fixed Switches

N9K-C9332PQ, N9K-C9396PX, N9K-C93128TX, N9K-C9372PX-E

Typical Application Scenarios

Leaf-spine architecture data center switching
ACI (Application Centric Infrastructure) fabric deployments
Enterprise and carrier colocation data centers with standard AC power feeds
Medium-density 10G/40G Layer2 / Layer3 data center switching environments
Hot-aisle oriented rack deployments matching port-side exhaust cooling design

Technical Specifications

Form Factor: Plug-in modular FRU
Airflow Type: Port-Side Exhaust (Forward Airflow, Blue Label)
Main DC Output: 12 VDC
Efficiency Standard: 80 PLUS Platinum
Hot Swappable: Yes
Redundancy Mode: 1+1
Compliance: NEBS, UL62368-1, EN62368-1, FCC Class A, CE certified, RoHS compliant

Short Version for E-commerce Listing

Cisco N9K-PAC-650W-B, 650W Hot-Swappable AC Power Supply Module for Cisco Nexus 9000 Series Data Center Switches. Port-side exhaust (forward airflow) model with blue handle and 80 PLUS Platinum efficiency. Equipped with universal 100–240VAC wide input, multi-level circuit protection and real-time LED telemetry monitoring. Supports 1+1 power redundancy and non-disruptive hot-swap maintenance, suitable for enterprise and ACI fabric data center infrastructure with standard AC power feeds.

Links： Kino Technology Ltd |
Kino Technology Limited 网站技术支持：未来互联

Cisco N9K-PAC-650W-B Full English Description

Product Overview

Key Features

Supported Hardware Platforms

Typical Application Scenarios

Technical Specifications

Short Version for E-commerce Listing


	© 2026 Kino Technology Limited. All Rights Reserved. \| Hong Kong Registered · Shenzhen Operation \| Original Brand New & Original Brand Used Network Communication Equipment Supplier