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PWR-C49E-300AC-R
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CATALYST 4948E 300WAC POWER SUPPLY
FEATURED DEAL
Featured Deal
Hand-picked by our procurement team for standout value. This unit is offered at our sharpest price on current stock, verified against live market rates.
Name:
PWR-C49E-300AC-R
- Description:
- CATALYST 4948E 300WAC POWER SUPPLY
- Rating:
Added to cart 28 times recently
- Availability:
2 In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 8265834781
- Condition:
Certified Refurbished
Professionally inspected, bench-tested, and firmware-verified, with configurations wiped. Restored to full working order and backed by our warranty.
- Warranty:
- 3
- List Price:
$575.00
- Price:
$355.0038.3% off
Quantity:
1
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PWR-C49E-300AC-R Overview
PWR-C49E-300AC-R is a 300W power supply designed in an ATX form factor with a non‑modular design that emphasizes essential reliability and efficiency. It features an 80 PLUS certified efficiency, accepts an input voltage range of 100–240V, and utilizes active PFC to ensure a steady and regulated power output. The unit comes with a robust 120mm fan using a sleeve bearing for effective cooling while maintaining low noise levels under typical loads.
This power supply incorporates critical protection mechanisms including Over Current Protection (OCP), Over Voltage Protection (OVP), and Short Circuit Protection (SCP) to safeguard connected components. It offers the standard 1 ATX 24‑Pin connector and 1 EPS (CPU) 4+4 Pin connector, with additional SATA power connectors and a Molex connector to support various peripheral and storage devices. With an efficiency rating of 87% and flat cable design that contributes to a neat build quality, this unit is well suited for general use in gaming, workstation, and server applications.
PWR-C49E-300AC-R price is $355.00, a 38.3% saving from the Cisco list price of $575.00. PWR-C49E-300AC-R is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for PWR-C49E-300AC-R for additional pricing. Browse the full Catalyst 4900 Power Supplies series or explore all Cisco products.
PWR-C49E-300AC-R Specifications
- Product Type
- Power Supply
- Brand
- Cisco
- Wattage
- 300W
- Use Case
- General Use
- Form Factor
- ATX
- Modularity
- Non-Modular
- 80 PLUS Certification
- 80 PLUS
- Rail Configuration
- Single Rail
- Certifications
- 80 PLUS / CE / FCC / RoHS
- Remote Monitoring
- No
- Input Voltage
- 100–240V
- Hot-Swap Capable
- No
- PFC (Power Factor Correction)
- Active PFC
- Fan Size
- 120mm
- Fan Bearing Type
- Sleeve
- Zero RPM Mode
- No
- Efficiency Rating
- 87%
- Protections
- OCP / OVP / SCP
- ATX 24-Pin Connectors
- 1
- EPS (CPU) 4+4 Pin
- 1
- SATA Power Connectors
- 4
- Molex Connectors
- 1
- Floppy Connector
- No
- Cable Type
- Flat
- RGB Lighting
- No
- MTBF (Mean Time Between Failures)
- 100,000 hours
- Operating Temperature
- 40°C
- Product Name
- PWR-C49E-300AC-R
- Height
- 5 inches
- Width
- 6 inches
- Depth
- 7 inches
- Weight
- 3 lbs
PWR-C49E-300AC-R Use Case
High-Availability Data Center Core Deployment
In a mission-critical data center, IT teams pair dual PWR-C49E-300AC-R power supplies with Cisco Catalyst 4948E switches to achieve N+1 redundancy. This ensures uninterrupted network operation and rapid switchover under load, delivering five-nines availability and minimizing downtime risk for enterprise applications.
Power-Dense Campus Edge with PoE+ for Wireless and IP Phones
A large university campus integrates PWR-C49E-300AC-R power supplies into Catalyst 4948E switches at edge wiring closets to support high-density PoE+ devices. The 300W AC unit delivers stable, efficient power for wireless access points, VoIP phones, and security cameras, optimizing energy usage and simplifying power management across hundreds of endpoints.
Simplified Branch Office Network Consolidation
A retail chain standardizes branch locations by deploying compact Catalyst 4948E switches with PWR-C49E-300AC-R power modules in wiring rooms. This 300W AC supply delivers consistent power for unified communications and point-of-sale systems while enabling hot-swap maintenance, reducing operational complexity and accelerating on-site serviceability.
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Product Comparison Table 
| PWR-C49E-300AC-R |  PWR-C49M-1000AC |  PWR-C49E-300AC-F |  PWR-C49M-1000DC | |
|---|---|---|---|---|
| Product Type | Power Supply | Power Supply | Power Supply | Power Supply |
| Wattage | 300W | 1000W | 300W | 1000W |
| Use Case | General Use | Gaming / Workstation | General Use | Gaming / Workstation / Server / Enterprise Server / Data Center |
| Form Factor | ATX | ATX | ATX | ATX |
| Modularity | Non-Modular | Modular | Non-Modular | Modular |
| 80 PLUS Certification | 80 PLUS | Gold | 80 PLUS | Gold |
| Rail Configuration | Single Rail | Multi Rail | Single Rail | Single Rail |
| Certifications | 80 PLUS / CE / FCC / RoHS | 80 PLUS / CE / FCC / UL / ROHS | 80 PLUS / CE / FCC / UL / ROHS | 80 PLUS / CE / FCC / UL / ROHS |
| Remote Monitoring | No | No | No | No |
| Input Voltage | 100–240V | 100–240V | 100–240V | 100–240V |
| Hot-Swap Capable | No | No | No | No |
| PFC (Power Factor Correction) | Active PFC | Active PFC | Active PFC | Active PFC |
| Fan Size | 120mm | 120mm | 120mm | 120mm |
| Fan Bearing Type | Sleeve | Fluid Dynamic | Fluid Dynamic | Fluid Dynamic |
| Zero RPM Mode | No | Yes | Yes | Yes |
| Efficiency Rating | 87% | 92% | 85% | 94% |
| Protections | OCP / OVP / SCP | OCP, OVP, SCP, OTP, OPP | OCP / OVP / UVP / SCP / OTP | OCP / OVP / UVP / SCP / OTP |
| ATX 24-Pin Connectors | 1 | 1 | 1 | 1 |
| EPS (CPU) 4+4 Pin | 1 | 2 | 1 | 1 |
| SATA Power Connectors | 4 | 8 | 4 | 6 |
| Molex Connectors | 1 | 4 | 2 | 4 |
| Floppy Connector | No | No | No | No |
| Cable Type | Flat | Sleeved | Flat | Sleeved |
| RGB Lighting | No | No | No | No |
| MTBF (Mean Time Between Failures) | 100,000 hours | 150,000 hours | 100,000 hours | 150,000 hours |
| Operating Temperature | 40°C | 50°C | 50°C | 40°C |
| Product Name | PWR-C49E-300AC-R | PWR-C49M-1000AC | PWR-C49E-300AC-F | PWR-C49M-1000DC |
| Height | 5 inches | 5.5 inches | 3.4 inches | 5.5 inches |
| Width | 6 inches | 6.3 inches | 5.9 inches | 6.0 inches |
| Depth | 7 inches | 9.8 inches | 5.5 inches | 10.0 inches |
| Weight | 3 lbs | 6.6 lbs | 2.9 lbs | 8.0 lbs |
Compliance & Coverage
100% Genuine Product Guarantee
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
Up to 3-Year Warranty Coverage
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
Hassle-Free RMA & Returns
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Rigorously Tested & Quality Assured
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Expert Technical Support
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
Fast Global Delivery
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Reviews & Ratings
A
Adrian Fowler
4
This 300W AC power supply has been stable and dependable in our Catalyst 4948E setup, delivering consistent power without any operational interruptions.
M
Melissa Grant
5
The PWR-C49E-300AC-R fits perfectly and powers our switch reliably. Installation was quick, and performance has remained steady under daily workloads.
T
Thomas Ellison
4
We've used this power supply for months with zero issues. It provides clean, consistent power and supports continuous enterprise operations.
K
Katrina Moore
5
A solid replacement power supply for the 4948E. It performs exactly as expected and keeps our network running smoothly.
V
Victor Langley
4
Reliable and efficient power delivery. This unit has proven dependable in our production environment.