Name: PWR-2921-51-POE Cisco 2921/2951 AC Power Supply with Power Over Ethernet
Brand: Cisco
SKU: PWR-2921-51-POE
Price: 563.18 USD
Availability: InStock
Rating: 4.8 (130 reviews)

Product Overview
The Cisco 2921/2951 AC Power Supply with Power Over Ethernet is designed to provide consistent power to Cisco ISR routers while enabling PoE capabilities for connected devices. It fits naturally into network setups where these routers are deployed, allowing for efficient power delivery and streamlined device support without additional hardware.

General Information
Brand	Cisco
Part Number	PWR-2921-51-POE
Product Type	Desktop Power Supply
Condition	Refurbished

Technical Information
Input Voltage	AC
Input Frequency	50-60 Hz
Hot Swappable	No
Redundant Support	No
Cooling Type	Active Fan
Modularity	Non-Modular
Number of Fans	1

Compatibility
Form Factor	Proprietary
Compatible For	Cisco 2921,Cisco 2951

Physical Characteristics
Weight	3.00

Certifications and Environmental
Compliance Standards	RoHS, CE, FCC, cULus

Product Description
The Cisco 2921/2951 AC Power Supply with Power Over Ethernet (PoE) provides essential power support for Cisco ISR routers, ensuring stable operation in network environments. Often found in enterprise and branch office setups, this power supply allows routers to deliver PoE to connected devices without needing additional power injectors. Built for IT professionals and network administrators, it simplifies deployment by combining router power and PoE in one unit, making it easier to power IP phones, wireless access points, and other PoE-enabled devices in the same network segment. Key Features Supports both Cisco 2921 and 2951 Integrated Services Routers Provides AC power alongside PoE to connected devices Ensures consistent and reliable power delivery Designed for straightforward integration into existing network hardware Reduces need for separate PoE power injectors This power supply is typically used in small to medium-sized network environments where Cisco ISR routers serve as the backbone. It helps streamline power management and device connectivity by enabling PoE directly from the router's power source. In practice, it saves space and reduces cabling complexity, making network setups cleaner and easier to manage without sacrificing power performance.

Use Cases
The Cisco 2921/2951 AC Power Supply with Power Over Ethernet is primarily used in environments where Cisco ISR routers are deployed and there is a need for integrated power delivery to connected PoE-enabled devices. It is particularly suited for small to medium business (SMB) networks, branch offices, and edge computing scenarios where consolidating power resources aids in simplifying infrastructure and reducing additional hardware. How It's Used: Powering Cisco 2921 and 2951 routers in SMB branch offices to support VoIP phones and wireless access points through PoE. Providing reliable AC power for ISR routers in enterprise edge deployments that require PoE for security cameras and IoT sensors. Enabling network device consolidation in remote office locations where rack space and power outlets are limited. Supporting virtualization edge computing setups where ISR routers deliver both connectivity and power to connected devices to maintain uptime. Facilitating rapid deployment of network infrastructure in temporary or mobile environments requiring streamlined power and data connectivity. This power supply supports operational efficiency by combining router and PoE power delivery in a single unit, reducing cabling complexity and hardware footprint. Its integration into Cisco ISR router environments helps maintain network performance and scalability, especially in distributed network architectures.