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PWR-C49E-300AC-F
Catalyst 4948E switch PWR-C49E-300AC-F
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PWR-C49E-300AC-F is a 300W ATX power supply that delivers reliable performance with an 80 PLUS certified efficiency and active PFC design. This non-modular unit supports a wide input voltage range of 100–240V and is equipped with a 120mm fan featuring a fluid dynamic bearing for quieter operation, while incorporating key protections such as OCP, OVP, UVP, SCP, and OTP. Its build quality is robust and its flat cables ensure a clean installation.
Engineered for general use in environments ranging from gaming rigs to workstations, the PWR-C49E-300AC-F comes with essential connectors including a single ATX 24-pin, one EPS (CPU) 4+4 pin, and four SATA power outputs, along with two Molex connectors, ensuring broad compatibility with modern PC components. With a zero RPM mode for lower noise levels during light loads and a rated efficiency of approximately 85%, this power supply is an ideal solution for users seeking dependable performance and quiet operation.
PWR-C49E-300AC-F price is $312.00, a 45.7% saving from the Cisco list price of $575.00. PWR-C49E-300AC-F is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for PWR-C49E-300AC-F for additional pricing. Browse the full Catalyst 4900 Power Supplies series or explore all Cisco products.
In a multi-building university campus, IT architects deploy the Catalyst 4948E switch powered by the PWR-C49E-300AC-F to deliver 48 ports of full-power PoE+ for Wi-Fi 6 access points and VoIP handsets. This setup ensures consistent 10 Gbps uplinks, centralized power management and seamless campus roaming. Outcome: simplified infrastructure, predictable power budgeting and superior end-user experience across lecture halls and student housing.
A global retail chain deploys Catalyst 4948E switches in regional data centers, each fed by a PWR-C49E-300AC-F power supply to support mission-critical servers and point-of-sale routers. The redundant AC input and hot-swap capability deliver 99.999% availability under peak loads and maintenance events. Outcome: maximum uptime, controlled operational expenses and simplified power-redundancy planning for branch data-center operations.
In a smart manufacturing plant, engineers install Catalyst 4948E switches equipped with PWR-C49E-300AC-F power supplies to aggregate and power over 40 PoE sensors, cameras and controllers in harsh environments. The hardened chassis and consistent 30 W per port PoE output maintain 24/7 connectivity and real-time telemetry. Outcome: streamlined device commissioning, reduced cabling complexity and enhanced operational visibility for predictive maintenance.
To get the detailed certification, please go to the Compliance Center.
| PWR-C49E-300AC-F |  PWR-C49M-1000DC/2 |  PWR-C49M-1000DC |  PWR-C49E-300AC-R= |  PWR-C49E-300AC-R/2 | |
|---|---|---|---|---|---|
| Product Type | Power Supply | Power Supply | Power Supply | Power Supply | Power Supply |
| Wattage | 300W | 1000W | 1000W | 300W | 300W |
| Use Case | General Use | Gaming / Workstation / Server | Gaming / Workstation / Server / Enterprise Server / Data Center | General Use | General Use |
| Form Factor | ATX | ATX | ATX | ATX | ATX |
| Modularity | Non-Modular | Modular | Modular | Non-Modular | Non-Modular |
| 80 PLUS Certification | 80 PLUS | Gold | Gold | 80 PLUS | Bronze |
| Rail Configuration | Single Rail | Single Rail | Single Rail | Single Rail | Single Rail |
| Certifications | 80 PLUS / CE / FCC / UL / ROHS | 80 PLUS / CE / FCC / UL / ROHS | 80 PLUS / CE / FCC / UL / ROHS | 80 PLUS / CE / FCC / RoHS | 80 PLUS / CE / FCC / UL / ROHS |
| Remote Monitoring | No | No | No | No | No |
| Input Voltage | 100–240V | 100–240V | 100–240V | 100–240V | 100–240V |
| Hot-Swap Capable | No | No | No | No | No |
| PFC (Power Factor Correction) | Active PFC | Active PFC | Active PFC | Active PFC | Active PFC |
| Fan Size | 120mm | 120mm | 120mm | 120mm | 120mm |
| Fan Bearing Type | Fluid Dynamic | Fluid Dynamic | Fluid Dynamic | Sleeve | Sleeve |
| Zero RPM Mode | Yes | Yes | Yes | No | Yes |
| Efficiency Rating | 85% | 92% | 94% | 87% | 85% |
| Protections | OCP / OVP / UVP / SCP / OTP | OCP / OVP / SCP | OCP / OVP / UVP / SCP / OTP | OCP / OVP / SCP | OCP / OVP / SCP / OTP |
| ATX 24-Pin Connectors | 1 | 1 | 1 | 1 | 1 |
| EPS (CPU) 4+4 Pin | 1 | 2 | 1 | 1 | 1 |
| PCIe (6+2) Connectors | N/A | 3 | 4 | N/A | N/A |
| SATA Power Connectors | 4 | 6 | 6 | 4 | 4 |
| Molex Connectors | 2 | 4 | 4 | 1 | 2 |
| Floppy Connector | No | No | No | No | No |
| Cable Type | Flat | Sleeved | Sleeved | Flat | Flat |
| RGB Lighting | No | No | No | No | No |
| MTBF (Mean Time Between Failures) | 100,000 hours | 150,000 hours | 150,000 hours | 100,000 hours | 100,000 hours |
| Operating Temperature | 50°C | 50°C | 40°C | 40°C | 40°C |
| Product Name | PWR-C49E-300AC-F | PWR-C49M-1000DC/2 | PWR-C49M-1000DC | PWR-C49E-300AC-R= | PWR-C49E-300AC-R/2 |
| Height | 3.4 inches | 3.4 inches | 5.5 inches | 5 inches | 3.4 inches |
| Width | 5.9 inches | 5.9 inches | 6.0 inches | 6 inches | 5.9 inches |
| Depth | 5.5 inches | 5.5 inches | 10.0 inches | 7 inches | 5.5 inches |
| Weight | 2.9 lbs | 6.4 lbs | 8.0 lbs | 3 lbs | 3.5 lbs |
This front-to-back cooling power supply fits our airflow design perfectly and delivers stable power to the 4948E.
The PWR-C49E-300AC-F has been efficient and reliable, supporting consistent switch performance throughout the day.
Strong build quality and smooth installation. It provides dependable power with proper airflow alignment.
We chose this model for airflow compatibility, and it has performed exactly as required without any power fluctuations.
A dependable power supply that integrates cleanly into our existing Catalyst infrastructure.
The Cisco PWR-C49E-300AC-F is a 300 W AC field-replaceable power supply designed for Catalyst 4948E switches, delivering reliable power and hot-swap capability.
The PWR-C49E-300AC-F is fully compatible with all Cisco Catalyst 4948E fixed-configuration switches requiring a 300 W AC power module.
This power supply accepts an input voltage of 100–240 VAC at 50–60 Hz and delivers 300 W of output power to the Catalyst 4948E.
Yes, the PWR-C49E-300AC-F supports hot-swap installation, allowing replacement while the switch remains operational.
Slide the PWR-C49E-300AC-F module into the empty power bay until it clicks, connect the AC cord, and verify the LED status turns green.
The PWR-C49E-300AC-F is UL listed, CE marked, and compliant with RoHS and FCC Class A requirements for industrial-grade IT equipment.
Check the front-panel LED indicators: green means normal, amber indicates a fault—reset the power cord and reseat the module if needed.
Yes, you can install two PWR-C49E-300AC-F modules for N+1 redundancy to ensure continuous operation in case of a unit failure.
Under normal operating conditions, the PWR-C49E-300AC-F is rated for a mean time between failures (MTBF) of over 100,000 hours.
The module measures 4.4 cm × 8.9 cm × 29.2 cm (H×W×D) and weighs approximately 1.1 kg.
The PWR-C49E-300AC-F meets Cisco’s internal energy-efficiency standards but is not formally 80 PLUS or ENERGY STAR certified.
Check the Cisco holographic label and serial number on Cisco’s authenticity portal to confirm your PWR-C49E-300AC-F is genuine.
Cisco provides a limited lifetime warranty on the PWR-C49E-300AC-F when used in Cisco Catalyst 4948E switches under standard conditions.
You can buy the PWR-C49E-300AC-F through authorized Cisco partners, resellers, or the Cisco online store.
Cisco’s standard return policy allows returns within 30 days of purchase, subject to inspection and restocking fees by the reseller.
Hot-swap the faulty module by disconnecting the AC cord, sliding out the old unit, inserting the new PWR-C49E-300AC-F, and reconnecting power—no network downtime required.
The PWR-C49E-300AC-F operates reliably between 0 °C and 40 °C (32 °F to 104 °F) in a controlled data center environment.
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