9000 650W Redundant AC Power Supply C9K PWR 650WAC R= original new in stock
Product Overview
The Cisco C9K-PWR-650WAC-R is a 650W AC power supply module designed for Cisco Catalyst 9000 Series switches, including Catalyst 9300 and 9400 models. With front-to-back airflow (denoted by “-R”), this power supply ensures optimal thermal alignment for data center and enterprise deployments. It is hot-swappable, redundant-ready, and supports both system and PoE power delivery.
Product Description
The Cisco C9K-PWR-650WAC-R is a high-efficiency, modular AC power supply that provides up to 650 watts of output to support system operation and Power over Ethernet (PoE) needs in enterprise access networks. Designed for compatibility with Cisco Catalyst 9300 and select 9400 models, this PSU features front-to-back airflow, making it ideal for installations that require specific thermal direction control. Its hot-swappable and field-replaceable design enables uninterrupted operation during maintenance or upgrades. When installed with a second PSU, it supports 1+1 redundancy, enhancing network resilience.
Key Features
650W AC power output
Supports PoE and PoE+ (IEEE 802.3af/at) delivery
Front-to-back airflow for optimized cooling in rack environments
Hot-swappable and modular for uninterrupted operations
1+1 PSU redundancy support in Catalyst switches
Compatible with Cisco Catalyst 9300 and 9400 Series
High-efficiency, low-heat power conversion
Compact PSU form factor with easy installation
Technical Specifications
| Specification | Details |
| Model | C9K-PWR-650WAC-R |
| Type | Modular AC Power Supply |
| Output Power | 650 Watts |
| Airflow | Front-to-Back (–R) |
| Hot Swappable | Yes |
| Redundant Supported | Yes (1+1 Redundancy) |
| PoE Support | Yes (PoE / PoE+ capable) |
| Input Voltage | 100–240V AC, 50–60 Hz |
| Efficiency | High-efficiency, energy optimized |
| Compatible Switches | Catalyst 9300, select 9400 models |
Compatible Switches Example
| Switch Model | PSU Slots | PoE Capable | Redundant PSU Support | Airflow Direction |
| Catalyst 9300-24P-E | 2 | Yes | Yes | Front-to-Back |
| Catalyst 9300-48P-A | 2 | Yes | Yes | Front-to-Back |
| Catalyst 9300-24UX-E | 2 | Yes | Yes | Front-to-Back |
| Catalyst 9400R Series | Varies | Yes | Yes | Configurable |
