Product Overview
The Cisco PWR-C4-950WAC-R is a 950W AC power supply unit with
front-to-back airflow, purpose-built for use in Cisco Catalyst 9400
Series switches. It delivers high-efficiency, redundant, and
hot-swappable power, making it ideal for enterprise access and core
deployments that require high PoE power and reliable infrastructure
uptime.
Product Description
Cisco PWR-C4-950WAC-R is a modular AC power supply designed for
Cisco Catalyst 9400 chassis switches, delivering up to 950W of
output power. It supports IEEE 802.3af/at PoE and PoE+
functionality and is commonly used in C9400 Series supervisor
engines and line cards to power PoE-enabled devices such as IP
phones, wireless APs, and IoT sensors. The “-R” suffix indicates
front-to-back airflow, which aligns with data center or enterprise
cooling strategies. It is hot-swappable and supports 1+1 or N+1
redundant configurations, enhancing system availability and
flexibility.
Key Features
950W AC output power for high PoE/PoE+ demand
Designed for Cisco Catalyst 9400 Series switches
Supports redundant (1+1 / N+1) power configurations
Hot-swappable design ensures zero downtime during replacement
Front-to-back airflow for optimized cooling
Supports high-density PoE environments (up to 90W per port with
UPOE+)
High-efficiency architecture reduces power consumption
Compact, modular form factor
Technical Specifications
| Specification | Details |
|---|
| Model | PWR-C4-950WAC-R |
| Type | AC Power Supply Unit (Modular) |
| Output Power | 950 Watts |
| Input Voltage Range | 100–240V AC, 50–60 Hz |
| PoE Support | Yes (PoE / PoE+ / UPOE) |
| Hot Swappable | Yes |
| Redundancy Support | Yes (1+1, N+1 Supported) |
| Airflow Direction | Front-to-Back |
| Compatible Series | Cisco Catalyst 9400 Series |
| Use Case | Enterprise access, PoE-rich networks |
| Form Factor | Modular PSU |
Compatible Chassis Example
| Cisco Chassis Model | PSU Slot Count | PoE Capable | Redundant PSU Support | Airflow Direction |
|---|
| C9404R | 2 | Yes | Yes | Front-to-Back or Reverse |
| C9407R | 3 | Yes | Yes | Configurable |
| C9410R | 4 | Yes | Yes | Configurable |
