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C3KX-PWR-440WDC
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Catalyst 3K-X 440W DC Power Supply Spare
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Name:
C3KX-PWR-440WDC
- Description:
- Catalyst 3K-X 440W DC Power Supply Spare
- Rating:
Added to cart 28 times recently
- Availability:
2 In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 0168141430138
- Condition:
Certified Refurbished
Professionally inspected, bench-tested, and firmware-verified, with configurations wiped. Restored to full working order and backed by our warranty.
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C3KX-PWR-440WDC Overview
C3KX-PWR-440WDC is a 440W power supply unit engineered to deliver steady power with a robust, compact ATX form factor. Designed as a non‑modular solution, it features an 80 PLUS Bronze efficiency certification, a wide 100–240V input voltage range and Active PFC to optimize power use. The unit is equipped with a 120mm fan with a sleeve bearing to balance effective cooling with low noise while incorporating multiple essential protections such as OCP, OVP, and SCP to safeguard connected components.
Built for reliable performance in gaming and general use systems, this PSU provides a complete set of connectors including a 24‑pin ATX main connector, a 4+4‑pin EPS connector for CPU power, a single 6+2‑pin PCIe connector for graphics cards, plus four SATA and two Molex connectors for peripherals. Its efficient cable management with flat cables and durable build quality ensure ease of installation and long‑term reliability even in temperature‑sensitive environments.
C3KX-PWR-440WDC price is is available on request. Get immediate quote.
Request bulk order quote for C3KX-PWR-440WDC for additional pricing. Browse the full Spare Power Supplies And Fan For Catalyst 3750-X Series series or explore all Cisco products.
C3KX-PWR-440WDC Specifications
- Product Type
- Power Supply
- Brand
- Cisco
- Wattage
- 450W
- Use Case
- Gaming
- Form Factor
- ATX
- Modularity
- Non-Modular
- 80 PLUS Certification
- Bronze
- Rail Configuration
- Single Rail
- Certifications
- 80 PLUS / CE / FCC / UL / 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
- Yes
- Efficiency Rating
- 87%
- Protections
- OCP / OVP / SCP
- ATX 24-Pin Connectors
- 1
- EPS (CPU) 4+4 Pin
- 1
- PCIe (6+2) Connectors
- 1
- SATA Power Connectors
- 4
- Molex Connectors
- 2
- Floppy Connector
- No
- Cable Type
- Flat
- RGB Lighting
- No
- MTBF (Mean Time Between Failures)
- 100,000 hours
- Operating Temperature
- 50°C
- Product Name
- C3KX-PWR-440WDC
- Height
- 3.4 inches
- Width
- 5.5 inches
- Depth
- 5.9 inches
- Weight
- 7 lbs
C3KX-PWR-440WDC Use Case
High-Availability Data Center Power Redundancy with Catalyst 3K-X 440W DC PSU Spare
In enterprise data centers running Catalyst 3750-X or 3850-X series switches on –48 VDC busbars, deploying C3KX-PWR-440WDC as a hot-swap spare ensures zero-downtime network services during PSU failure or maintenance. Benefit: Maintains uninterrupted L2/L3 switching, eliminates planned and unplanned downtime, and simplifies capacity planning for high-availability architectures.
Telecommunications Edge Switch Resilience in Cell Tower Environments
At remote cell sites powered by –48 VDC telecom rectifiers, using the Catalyst 3K-X 440W DC Power Supply Spare provides immediate replacement capability for critical edge switches delivering VoLTE and backhaul. Benefit: Guarantees continuous call processing and data throughput, reduces truck rolls, and enforces carrier-grade uptime SLAs in harsh environmental conditions.
Industrial Automation and PoE-Powered Surveillance Uptime
In manufacturing plants where –48 VDC bus-powered Catalyst 3K-X series switches feed PoE cameras and safety sensors, keeping C3KX-PWR-440WDC on-site minimizes repair time when a primary DC PSU fails. Benefit: Preserves real-time video monitoring, emergency shutdown interlocks, and quality-control data streams, driving continuous production and compliance with industry safety standards.
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Product Comparison Table 
| C3KX-PWR-440WDC |  C3KX-PWR-350WAC | |
|---|---|---|
| Product Type | Power Supply | Power Supply |
| Wattage | 450W | 350W |
| Use Case | Gaming | Gaming / Workstation / General Use |
| Form Factor | ATX | ATX |
| Modularity | Non-Modular | Non-Modular |
| 80 PLUS Certification | Bronze | 80 PLUS |
| Rail Configuration | Single Rail | Single Rail |
| Certifications | 80 PLUS / CE / FCC / UL / ROHS | 80 PLUS / CE / FCC / UL |
| Remote Monitoring | No | No |
| Input Voltage | 100–240V | 100–240V |
| Hot-Swap Capable | No | No |
| PFC (Power Factor Correction) | Active PFC | Active PFC |
| Fan Size | 120mm | 120mm |
| Fan Bearing Type | Sleeve | Sleeve |
| Zero RPM Mode | Yes | Yes |
| Efficiency Rating | 87% | 87% |
| Protections | OCP / OVP / SCP | OCP / OVP / SCP |
| ATX 24-Pin Connectors | 1 | 1 |
| EPS (CPU) 4+4 Pin | 1 | 1 |
| PCIe (6+2) Connectors | 1 | 1 |
| SATA Power Connectors | 4 | 4 |
| Molex Connectors | 2 | 2 |
| Floppy Connector | No | No |
| Cable Type | Flat | Flat |
| RGB Lighting | No | No |
| MTBF (Mean Time Between Failures) | 100,000 hours | 100,000 hours |
| Operating Temperature | 50°C | 40°C |
| Product Name | C3KX-PWR-440WDC | C3KX-PWR-350WAC |
| Height | 3.4 inches | 5 inches |
| Width | 5.5 inches | 6 inches |
| Depth | 5.9 inches | 10 inches |
| Weight | 7 lbs | 4 lbs |
Compliance & Warranty
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
V
Victor Halvorsen
5
This 440W DC power supply has been reliable and efficient. It fits perfectly and supports stable operation in our DC-powered network racks.
A
Amina Farouk
4
The C3KX-PWR-440WDC provides consistent output and integrates smoothly with our Catalyst 3K-X switch.
J
Julien Moreau
5
Solid DC power option with dependable performance. It has handled continuous workloads without any issues.
R
Rachel O'Sullivan
5
We selected this DC supply for our data center environment, and it has proven stable and easy to deploy.
K
Kenji Takahashi
5
Reliable DC power delivery and good build quality. It meets enterprise expectations for access-layer switching.
Questions & Answers
What is the Catalyst 3K-X 440W DC Power Supply Spare (C3KX-PWR-440WDC)?
The C3KX-PWR-440WDC is a 440-watt direct-current power supply designed as a field-replaceable spare for Cisco Catalyst 3K-X series switches, ensuring uninterrupted DC power delivery.
Which Cisco Catalyst 3K-X switch models support the 440W DC Power Supply Spare?
The 440W DC power supply spare is compatible with Catalyst 3650 and 3850 series switches that feature a DC input power module slot.
What DC input voltage range does this power supply require?
This unit accepts a DC input voltage range of –40 to –72 VDC, meeting industry standards for telecom and enterprise networks.
How much power does the C3KX-PWR-440WDC deliver and what is its efficiency?
It delivers a continuous 440 watts of DC power with 90% efficiency under typical load conditions, optimizing energy consumption.
Is the Catalyst 3K-X 440W DC power supply hot-swappable?
Yes. The module supports hot-swap operation, allowing you to replace it without powering down the switch or disrupting network traffic.
How do I install the 440W DC power supply spare in my Catalyst 3K-X switch?
Align the module rails with the slot guides, slide it until it clicks, and secure it with the captive thumbscrews; the switch auto-detects and initializes the supply.
How is power redundancy managed with dual 440W DC supplies?
When two 440W DC supplies are installed, the switch load balances power between them and provides failover if one module fails.
What LED indicators are available on the DC power supply module?
The front panel features green (operational), amber (fault), and off (no power) LEDs, offering at-a-glance status and troubleshooting cues.
What are the environmental operating conditions for the C3KX-PWR-440WDC?
It operates reliably in 0°C to 40°C ambient temperature, up to 90% non-condensing humidity, and is rated for 5,000 feet altitude.
Which safety and electromagnetic compliance certifications does this power supply hold?
The unit is UL certified, CE marked, and complies with FCC Class A and CISPR 22/24 emissions and immunity standards.
What is the warranty coverage for the Catalyst 3K-X 440W DC Power Supply Spare?
Cisco offers a limited lifetime warranty for genuine spares, covering defects in materials and workmanship with advance replacement options.
How can I verify genuine Cisco spare part authenticity?
Check the Cisco serial number and holographic label on the module, and validate them using Cisco’s online SPARE PART AUTHENTICATION tool.
Where can I purchase the C3KX-PWR-440WDC?
Authorized Cisco resellers, partners, and the Cisco Commerce Workspace offer genuine C3KX-PWR-440WDC spares with full warranty support.
How do I troubleshoot power-related issues with this spare module?
Verify DC input voltage, check LED status codes, review switch logs via CLI (show environment power), and reseat the module to clear insertion faults.
What Cisco IOS commands display the DC power supply status?
Use "show power all" or "show environment power" in privileged EXEC mode to view input voltage, output power, redundancy status, and faults.
Are there any recommended maintenance practices for the 440W DC power supply spare?
Perform periodic visual inspections, clean airflow vents, verify secure mounting, and monitor LED indicators to ensure optimal performance.