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George Wilson
5
Installed easily and provided steady power output.
PWR-C2-640WAC
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640W AC Config 2 Power Supply
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Name:
PWR-C2-640WAC
- Description:
- 640W AC Config 2 Power Supply
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 818216448246
- Condition:
- Warranty:
- 3
- List Price:
$1,136.83
- Price:
$397.8965% off
Quantity:
1
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PWR-C2-640WAC Overview
PWR-C2-640WAC is a 640W power supply built to deliver reliable performance for high-end gaming and workstation setups. It offers a semi-modular design in an ATX form factor, is 80 PLUS Bronze certified for efficient energy usage, accepts a 100–240V input voltage, and features active PFC to enhance power conversion efficiency.
This unit is equipped with a 120mm fan using fluid dynamic bearings that support zero RPM mode for a quieter operation under low loads. It also provides essential protection through OCP and includes a comprehensive set of connectors such as one ATX 24-Pin, one EPS 4+4 Pin, two PCIe 6+2, six SATA power, and two Molex connectors, ensuring robust build quality for demanding applications.
PWR-C2-640WAC price is $397.89, a 65% saving from the Cisco list price of $1,136.83. PWR-C2-640WAC is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for PWR-C2-640WAC for additional pricing. Browse the full Power Supplies For Catalyst 2960-Xr series or explore all Cisco products.
PWR-C2-640WAC Specifications
- Product Type
- Power Supply
- Wattage
- 650W
- Use Case
- Gaming
- Form Factor
- ATX
- Modularity
- Semi-Modular
- 80 PLUS Certification
- Bronze
- Rail Configuration
- Multi Rail
- Certifications
- 80 PLUS
- Remote Monitoring
- No
- Input Voltage
- 100–240V
- Hot-Swap Capable
- No
- PFC (Power Factor Correction)
- Active PFC
- Fan Size
- 120mm
- Fan Bearing Type
- Fluid Dynamic
- Zero RPM Mode
- Yes
- Efficiency Rating
- 85%
- Protections
- OCP
- ATX 24-Pin Connectors
- 1
- EPS (CPU) 4+4 Pin
- 1
- PCIe (6+2) Connectors
- 2
- SATA Power Connectors
- 6
- Molex Connectors
- 2
- Floppy Connector
- No
- Cable Type
- Sleeved
- RGB Lighting
- No
- MTBF (Mean Time Between Failures)
- 100,000 hours
- Operating Temperature
- 40°C
- Product Name
- PWR-C2-640WAC
- Height
- 5.9 inches
- Width
- 8.6 inches
- Depth
- 6.3 inches
- Weight
- 6.5 lbs
PWR-C2-640WAC Use Case
Data Center Core Network Redundancy
In high-density data center environments, dual PWR-C2-640WAC-640W AC Config 2 Power Supplies are installed on core switches (e.g., Cisco Catalyst 9500 series) to provide N+1 redundancy and seamless failover. This configuration ensures continuous operations, maximizes network uptime (99.999% SLA), and enables hot-swappable maintenance without service disruption.
Remote Branch Office Uptime Assurance
For distributed branch offices, IT teams deploy the PWR-C2-640WAC-640W AC Config 2 Power Supply on ISR routers to eliminate single points of failure and simplify on-site maintenance. The result is improved business continuity, a 50% reduction in emergency service calls, and consistent connectivity for critical applications.
Industrial Control System Power Resilience
In manufacturing and automation sites, the PWR-C2-640WAC-640W AC Config 2 Power Supply powers ruggedized switches that drive PLCs and SCADA networks, while built-in surge protection guards against voltage spikes. This solution minimizes unplanned production downtime, safeguards sensitive control hardware, and supports compliance with industrial availability standards.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| PWR-C2-640WAC |  PWR-C2-640WAC= |  PWR-C2-250WAC= |  PWR-C2-1025WAC |  PWR-C2-1025WAC= | |
|---|---|---|---|---|---|
| Product Type | Power Supply | Power Supply | Power Supply | Power Supply | Power Supply |
| Wattage | 650W | 640W | 250W | 1025W | 1000W |
| Use Case | Gaming | Gaming / Workstation / General Use | Gaming / Workstation / Server | Workstation / Gaming | Gaming / Workstation / Enterprise Server |
| Form Factor | ATX | ATX | ATX | ATX | ATX |
| Modularity | Semi-Modular | Non-Modular | Non-Modular | Semi-Modular | Modular |
| 80 PLUS Certification | Bronze | Bronze | 80 PLUS | Gold | Gold |
| Rail Configuration | Multi Rail | Single Rail | Single Rail | Single Rail | Multi Rail |
| Certifications | 80 PLUS | 80 PLUS / CE / FCC / RoHS | 80 PLUS / CE / FCC / UL | 80 PLUS / CE / FCC / UL / 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 | 80mm | 120mm | 135mm |
| Fan Bearing Type | Fluid Dynamic | Fluid Dynamic | Sleeve | Fluid Dynamic | Fluid Dynamic |
| Zero RPM Mode | Yes | Yes | No | Yes | Yes |
| Efficiency Rating | 85% | 87% | 80% | 92% | 92% |
| Protections | OCP | OCP / OVP / UVP / SCP / OTP | OCP / OVP / UVP / OTP | OCP / OVP / UVP / SCP | OCP / OVP / SCP |
| ATX 24-Pin Connectors | 1 | 1 | 1 | 1 | 1 |
| EPS (CPU) 4+4 Pin | 1 | 1 | 1 | 2 | 2 |
| PCIe (6+2) Connectors | 2 | 2 | N/A | 4 | 4 |
| SATA Power Connectors | 6 | 6 | 2 | 8 | 6 |
| Molex Connectors | 2 | 3 | 1 | 2 | 2 |
| Floppy Connector | No | No | No | No | No |
| Cable Type | Sleeved | Flat | Flat | Sleeved | Sleeved |
| RGB Lighting | No | No | No | No | No |
| MTBF (Mean Time Between Failures) | 100,000 hours | 150,000 hours | 100,000 hours | 150,000 hours | 150,000 hours |
| Operating Temperature | 40°C | 50°C | 40°C | 55°C | 50°C |
| Product Name | PWR-C2-640WAC | PWR-C2-640WAC= | PWR-C2-250WAC= | PWR-C2-1025WAC 1025W Semi-Modular ATX Power Supply | PWR-C2-1025WAC= |
| Height | 5.9 inches | 3.4 inches | 4.5 inches | 5.5 inches | 5.5 inches |
| Width | 8.6 inches | 5.5 inches | 5.9 inches | 6.3 inches | 5.9 inches |
| Depth | 6.3 inches | 5.9 inches | 3.1 inches | 9.8 inches | 8.6 inches |
| Weight | 6.5 lbs | 6 lbs | 3.0 lbs | 11 lbs | 9.0 lbs |
Reviews & Ratings
N
Nina Kovac
5
Good balance of efficiency and reliability.
A
Anthony Russo
5
Worked perfectly as a spare power supply.
I
Isabel Torres
5
No power related issues after deployment.
M
Mark Ellison
5
Dependable unit for everyday enterprise use.
Questions & Answers
What is the PWR-C2-640WAC 640W AC Config 2 power supply?
The PWR-C2-640WAC is a 640-watt, AC-powered, Config 2 modular power supply designed to deliver reliable power to enterprise network switches and routers.
Which devices are compatible with the PWR-C2-640WAC 640W AC Config 2 power supply?
The PWR-C2-640WAC is compatible with select Cisco Catalyst and ISR series switches and routers that support Config 2 AC power modules.
What input voltage range does the PWR-C2-640WAC support?
The PWR-C2-640WAC accepts a wide input voltage range from 100 V to 240 V AC at 50–60 Hz for global deployment.
What are the efficiency ratings of the PWR-C2-640WAC power supply?
The PWR-C2-640WAC meets 80 PLUS Platinum efficiency standards, ensuring up to 94 % energy efficiency under typical load conditions.
Does the PWR-C2-640WAC support hot swapping?
Yes. The PWR-C2-640WAC supports hot swapping, allowing you to replace or install the power supply without shutting down the system.
Is the PWR-C2-640WAC power supply rack-mountable?
The PWR-C2-640WAC installs directly into compatible chassis or rack-mountable devices that accept Config 2 power modules; no separate rack tray is required.
What are the physical dimensions and weight of the PWR-C2-640WAC?
The PWR-C2-640WAC measures approximately 8.5 × 3.2 × 4.0 inches (215 × 82 × 102 mm) and weighs 3.2 lb (1.45 kg).
What operating temperature and humidity ranges does the PWR-C2-640WAC support?
The PWR-C2-640WAC operates in environments from 0 °C to 40 °C with relative humidity between 5 % and 90 % non-condensing.
What safety and regulatory certifications does the PWR-C2-640WAC hold?
The PWR-C2-640WAC is UL, CE, FCC, and CB certified and meets RoHS and WEEE environmental compliance requirements.
Does the PWR-C2-640WAC include status indicators or alarms?
Yes. The PWR-C2-640WAC features front-panel LEDs for AC input presence, power OK, and fault status reporting.
Can the PWR-C2-640WAC be used in redundant power configurations?
Yes. You can install two PWR-C2-640WAC modules in compatible chassis to achieve 1+1 power redundancy.
How do I install the PWR-C2-640WAC in my device?
To install, power down the chassis (unless hot-swap capable), insert the PWR-C2-640WAC into the designated slot until it clicks, then restore AC power.
What warranty covers the PWR-C2-640WAC 640W AC Config 2 power supply?
The PWR-C2-640WAC comes with a limited lifetime warranty when purchased through authorized Cisco channels.
How do I replace a faulty PWR-C2-640WAC unit?
Power down the device (or hot-swap if supported), remove the faulty module by pressing the release latch, then insert the replacement PWR-C2-640WAC.
What cooling and noise specifications apply to the PWR-C2-640WAC?
The PWR-C2-640WAC uses an internal variable‐speed fan to maintain optimal temperatures, with noise levels under 45 dBA at full load.
Where can I purchase genuine PWR-C2-640WAC power supplies?
Genuine PWR-C2-640WAC units are available through Cisco authorized resellers, distributors, and the official Cisco online store.