Catalyst 4948 Power Supply PWR-C49-300AC Overview
Catalyst 4948 Power Supply PWR-C49-300AC is a genuine modular capacity expansion product from Cisco, a global name in networking whose platforms are used by enterprises, service providers and data-center operators alike. Belonging to the Cisco family, the PWR-C49-300AC unit is built to the original factory specification, so it integrates with existing Cisco deployments predictably and behaves exactly as the platform documentation describes. In the network, it is installed into a compatible chassis slot, where it works alongside the supervisor and line cards to extend the platform’s capabilities.
This unit follows the original factory specification for the Cisco family, covering its intended role without compatibility surprises. Standard mounting, cabling and management practices apply, and it interoperates with surrounding hardware using the same procedures as other Cisco equipment already deployed in the network.
Typical deployments include redundant power for mission-critical switches and routers, hot-swappable replacement in live production environments, and hot-swappable replacement in live production environments. Organizations commonly source it for refresh programs, capacity expansion and spares management, keeping a tested unit on hand so outages stay short and replacements are predictable. The factory detail for this unit reads: “Cisco 300-Watts 100-240V AC Redundant Hot Swap Power Supply for Catalyst 4900”. This makes it a practical choice when original-spec hardware is required at a predictable cost.
Every unit at LinkNewNet is inspected and tested before dispatch, and stock is graded, cleaned and verified for correct operation, including port status, console access and firmware state. Our warranty coverage and responsive technical support protect the purchase after it arrives, and our team can confirm revision levels and software compatibility before you order. For volume requirements we also offer configuration checks and staged delivery options.
Contact our sales team for current availability, lead time and shipping options for the PWR-C49-300AC. We respond quickly with stock status and a firm quote, so you can plan the refresh or expansion with confidence.
Key Specifications
Applications
Capacity Expansion
Add ports and performance to existing chassis.
Upgrade Path
Modernize aging platforms with compatible modules.
Flexible I/O
Mix copper, fiber and high-speed uplinks.
Buying a Pre-Owned PWR-C49-300AC
Verify the unit is tested, firmware confirmed, and condition documented. Every unit is fully tested and warranty covered. Contact our team for current stock and availability.
PWR-C49-300AC Specifications | |
| Model | PWR-C49-300AC |
| Product Type | Redundant Power Supply |
| Compatibility | Catalyst 4948 Series Switches |
| Brand | Cisco |
| Power Input | 100-240VAC |
| Output Voltage | 12 V DC |
| Power Supply Type | Internal |
| Input Frequency | 50-60 Hz |
| Efficiency | 90% |
| Operating Humidity | 10% to 85%, non-condensing |
| Operating Temperature | 0°C to 40°C |
| Storage Temperature | -40°C to 75°C |
PWR-C49-300AC - Deployment Notes
This PWR-C49-300AC switch is suited to wiring-closet, distribution, or core roles depending on the port density and uplink options of the specific model. The port configuration is a key consideration when planning power budgets for attached devices such as IP phones and access points.
For a refresh or expansion, confirm the IOS/NX-OS software release supported by this specific SKU, the fan and power requirements, and the uplink modules that match your existing infrastructure. Our team can verify revision levels and software compatibility before you order.
Every unit at LinkNewNet is inspected and tested before dispatch, and this PWR-C49-300AC variant is graded, cleaned and verified for correct operation, including port status, console access and firmware state. Volume requirements can be staged with configuration checks.
PWR-C49-300AC - Cisco Series Notes
This listing is part of the Cisco enterprise networking product family, sourced and tested by LinkNewNet for enterprise deployment. Cisco Catalyst or Nexus switch is typically deployed in campus access, distribution, or data-center roles. It provides reliable Layer 2/3 switching for user, server and uplink connectivity, and integrates with Cisco DNA Center or traditional CLI-based management.
Deployment guidance: When planning this PWR-C49-300AC unit into a network, confirm the software image (IOS/IOS-XE/NX-OS) required, the power and cooling profile, and the upstream/downstream interface types that match your existing infrastructure. For a like-for-like refresh, match the feature set of the units already in service so management and automation behave consistently.
Our Cisco reconditioning process: Every pre-owned Cisco unit at LinkNewNet passes a documented reconditioning flow before dispatch - visual inspection, internal cleaning, firmware verification, port-by-port testing, and configuration reset to factory defaults. This ensures the unit you receive operates reliably and integrates cleanly with your existing Cisco management tools.
Related models in this family: WS-C4948-S, WS-C4948E-E, WS-C4948-10GE-S, 4900M-BLK-CVR, WS-C4948E. Compare specifications to confirm the right port density, feature set and uplink options for your deployment.
Model code: C = China regulatory domain / Configurable - this suffix indicates the feature set, power, or regulatory variant of the PWR-C49-300AC, which affects software licensing and regional compliance.
