United StatesCisco Power Supplies for Networking
Engineered for superior reliability and performance, Cisco Power Supplies optimize critical network infrastructures. Rigorously tested against global standards, they ensure sustained efficiency and uninterrupted operational excellence.
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Router 7200 Series Power Supplies (9)
Cisco 7200 router power supplies fit branch WAN aggregation racks using AC or DC input modules for NPE-based chassis
Router Asr 9000 Power Supplies (8)
Cisco ASR 9000 power supplies support service provider edge routers with DC plant feeds and high-density line-card shelves
Cisco Router 10000 Series Power Supplies (1)
Cisco 10000 router power supplies fit broadband aggregation sites using AC or DC PEM modules for carrier edge chassis
Asa 5500 Power Supplies (16)
Cisco ASA 5500 power supplies target firewall perimeter racks with AC inputs for VPN and stateful inspection appliances
Catalyst 4500 Power Supplies (3)
Catalyst 4500 power supplies serve modular campus distribution closets with PoE line cards and redundant AC supply bays
Catalyst 4900 Power Supplies (8)
Catalyst 4900 power supplies fit top-of-rack switching rows in server rooms with 1GbE or 10GbE uplinks and hot-swappable AC modules
Spare Power Supplies And Fan For Catalyst 3750-X Series (7)
Catalyst 3750-X spare power supplies and fans support stackable access closets with StackPower sharing and field-replaceable airflow modules
Power Supplies For Catalyst 2960-Xr (6)
Catalyst 2960-XR power supplies fit fixed access switches in wiring closets under 250 ports using field-replaceable AC modules
Power Supplies For Wireless Lan (4)
Wireless LAN power supplies cover access point deployments, controller closets, and PoE injectors using 802.3af or 802.3at feeds
Power Supply For Controller (2)
Controller power supplies support network control appliances in campus equipment rooms with redundant AC inputs and rack-serviceable modules
Power Supplies For Catalyst 3000 Series (3)
Catalyst 3000 series power supplies fit stackable access switch blocks with Gigabit Ethernet uplinks and replaceable AC modules
Catalyst 6500 Power Supplies (1)
Catalyst 6500 power supplies serve campus core and distribution chassis with high-wattage AC feeds and redundant supply slots
Power Adapters (35)
Power adapters suit desktop network endpoints, compact switches, and wireless bridges using barrel, USB-C, or external AC conversion
Power Cords (34)
Power cords connect rack PDUs, servers, and network appliances with IEC C13, C19, NEMA, or regional plug types
Power Supplies For Ip Phones (14)
IP phone power supplies support desk handset fleets and call-center pods using inline PoE alternatives or external AC adapters
151 Matching results
- BEST SELLING
C3KX-PWR-350WAC= (Catalyst 3K-X 350W AC Power Supply )
4.8 (5)- Power Supply
- 350W
- Gaming / Workstation / General Use
- ATX
- Non-Modular
- 80 PLUS
- Single Rail
Est Value
$581.70$215.23
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C3KX-PWR-715WAC= (Catalyst 3K-X 715W AC Power Supply )
4.8 (5)- Power Supply
- 715W
- Enterprise Server / Workstation / Gaming
- ATX
- Semi-Modular
- Bronze
- Single Rail
Est Value $1,163.39$221.04
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- BEST SELLING
PWR-C2-250WAC= (250W AC Config 2 Power Supply Spare)
4.6 (5)- Power Supply
- 250W
- Gaming / Workstation / Server
- ATX
- Non-Modular
- 80 PLUS
- Single Rail
Est Value $724.00$257.00
64.5% offFirst-Time Buyer Discount – Get up to 2% additional off on your first order
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PWR-C2-640WAC= (640W AC Config 2 Power Supply Spare )
4.6 (5)- Power Supply
- 640W
- Gaming / Workstation / General Use
- ATX
- Non-Modular
- Bronze
- Single Rail
Est Value $1,551.00$406.00
73.8% offFirst-Time Buyer Discount – Get up to 2% additional off on your first order
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- BEST SELLING
C3KX-PWR-1100WAC= (Catalyst 3K-X 1100W AC Power Supply)
4.4 (5)- Power Supply
- 1100W
- Gaming / Workstation / Server
- ATX
- Modular
- Platinum
- Multi Rail
Est Value $1,745.10$418.83
76% offFirst-Time Buyer Discount – Get up to 2% additional off on your first order
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PWR-C49M-1000AC/2 (Cisco 4900M Switch PWR-C49M-1000AC/2)
4.4 (5)- Power Supply
- 1000W
- Gaming
- ATX
- Modular
- Platinum
- Single Rail
Est Value $1,000.00$440.00
56% offFirst-Time Buyer Discount – Get up to 2% additional off on your first order
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- BEST SELLING
PWR-C1-1100WAC (1100W AC Config 1 Power Supply)
4.6 (5)- Power Supply
- 1100W
- Workstation / Gaming
- ATX
- Modular
- Gold
- Single Rail
Est Value $2,330.00$457.00
80.4% offFirst-Time Buyer Discount – Get up to 2% additional off on your first order
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PWR-C49M-1000AC (4900M AC POWER SUPPLY 1000WATTS)
4.8 (5)- Power Supply
- 1000W
- Gaming / Workstation
- ATX
- Modular
- Gold
- Multi Rail
Est Value $1,150.00$500.00
56.5% offFirst-Time Buyer Discount – Get up to 2% additional off on your first order
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PWR-C2-1025WAC= (1025W AC Config 2 Power Supply Spare)
4.6 (5)- Power Supply
- 1000W
- Gaming / Workstation / Enterprise Server
- ATX
- Modular
- Gold
- Multi Rail
Est Value $2,335.00$531.00
77.3% offFirst-Time Buyer Discount – Get up to 2% additional off on your first order
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PWR-C45-1400AC (CATALYST 4500 1400W AC POWER SUPPLY DATA ONLY)
4.4 (5)- Power Supply
- 1400W
- Gaming / Workstation / Server
- ATX
- Modular
- Platinum
- Single Rail
Est Value $1,495.00$656.00
56.1% offFirst-Time Buyer Discount – Get up to 2% additional off on your first order
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PWR-C49M-1000DC/2 (Cisco 4900M Switch PWR-C49M-1000DC/2)
4.6 (5)- Power Supply
- 1000W
- Gaming / Workstation / Server
- ATX
- Modular
- Gold
- Single Rail
Est Value $1,500.00$661.00
55.9% offFirst-Time Buyer Discount – Get up to 2% additional off on your first order
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PWR-C49M-1000DC (Cisco 4900M Switch PWR-C49M-1000DC)
4.6 (5)- Power Supply
- 1000W
- Gaming / Workstation / Server / Enterprise Server / Data Center
- ATX
- Modular
- Gold
- Single Rail
Est Value $1,700.00$752.00
55.8% offFirst-Time Buyer Discount – Get up to 2% additional off on your first order
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WS-CAC-3000W (CATALYST 6500 3000W AC PWR SUPP)
4.8 (5)- Power Supply
- 1600W
- Workstation
- ATX
- Modular
- Platinum
- Multi Rail
Est Value $3,034.94$758.73
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CP-DSKCH-7925G-BUN (Cisco 7925G Desk Top Charger, Power Supply, AC Power Cord)
4.7 (6)- Power Supply
- 850W
- Gaming / Workstation / General Use
- ATX
- Modular
- Gold
- Single Rail
Est Value $195.00$101.00
48.2% offFirst-Time Buyer Discount – Get up to 2% additional off on your first order
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C3KX-PWR-350WAC/2 (Catalyst 3K-X 350W AC Secondary Power Supply )
4.8 (5)- Power Supply
- 350W
- Gaming / Workstation / Enterprise Server
- ATX
- Non-Modular
- 80 PLUS
- Single Rail
Est Value $575.00$188.00
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NXA-PAC-650W-PI= (NEXUS NEBS AC 650W PSU PORT SIDE INTAKE)
4.6 (5)- Power Supply
- 650W
- Gaming / Workstation
- ATX
- Semi-Modular
- Bronze
- Single Rail
Est Value $663.85$219.07
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C3KX-PWR-715WAC/2 (Catalyst 3K-X 715W AC Secondary Power Supply)
4.2 (5)- Power Supply
- 700W
- Workstation / Gaming
- ATX
- Modular
- Gold
- Single Rail
Est Value $1,150.00$224.00
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PWR-C1-1100WAC/2= (Cisco Switch Power Supply 1100W AC)
4.2 (5)- Power Supply
- 1100W
- Gaming / Workstation / Server
- ATX
- Modular
- Platinum
- Single Rail
Est Value $1,900.00$243.00
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PWR-C1-350WAC/2 (Cisco Switch Power Supply 350W AC)
4.8 (5)- Power Supply
- 350W
- Enterprise Server / Workstation / Gaming
- ATX
- Non-Modular
- 80 PLUS
- Single Rail
Est Value $769.00$244.00
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AIR-PWR-ST-LT-R3P= (1520 SERIES STREET LIGHT POWER TAP)
4.6 (5)- Power Supply
- 600W
- Gaming / Workstation
- ATX
- Modular
- Gold
- Single Rail
Est Value $485.38$252.39
48% offFirst-Time Buyer Discount – Get up to 2% additional off on your first order
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LEARNFilters (151) 
Questions & Answers
What is a Cisco Power Supply?
A Cisco Power Supply is a dedicated module that delivers stable, regulated power to Cisco networking devices, ensuring optimal performance and reliability.
How do I choose the right Cisco Power Supply for my device?
Select a Cisco Power Supply by matching your device’s model number and total wattage requirements, then confirm compatibility in Cisco’s hardware installation guide.
What wattage options are available for Cisco Power Supplies?
Cisco Power Supplies range from 150 W to 3,000 W, covering entry-level switches, routers, firewalls, and high-density data center appliances.
Are Cisco Power Supplies hot-swappable?
Yes. Hot-swappable Cisco Power Supplies allow you to replace a faulty unit without shutting down the device, minimizing network downtime.
How do I install a Cisco Power Supply?
Power off the device, slide the Cisco Power Supply into the module bay until it clicks, then reconnect the AC or DC power cord and power on.
How do I check the health of my Cisco Power Supply?
Use the Cisco IOS command ‘show environment power’ or view the device’s front-panel LEDs to verify voltage, load, and temperature status.
What warranty does Cisco offer on its Power Supplies?
Cisco Power Supplies carry a one-year limited hardware warranty, with extended support options available through Cisco SMARTnet Service.
Can I use third-party power supplies with Cisco equipment?
Cisco recommends using genuine Cisco Power Supplies to ensure full compatibility, warranty protection, and compliance with safety standards.
How do I replace a failed Cisco Power Supply?
Power down the device if non-hot-swappable, remove the defective module, insert a new Cisco Power Supply, reconnect power, and verify via status LEDs.
What is power redundancy in Cisco devices?
Power redundancy uses dual or multiple Cisco Power Supplies in active-standby or load-sharing mode to eliminate single points of failure.
Are Cisco Power Supplies energy efficient?
Yes. Cisco Power Supplies are designed to meet ENERGY STAR® and 80 PLUS® efficiency standards, reducing power consumption and operating costs.
How do I troubleshoot Cisco Power Supply issues?
Check AC/DC input, verify LED indicators, run ‘show environment power’ in CLI, and swap modules to isolate failures before contacting Cisco TAC.
Where can I buy genuine Cisco Power Supplies?
Purchase genuine Cisco Power Supplies through authorized Cisco partners, resellers, or the Cisco Commerce Workspace for guaranteed authenticity.
What certifications do Cisco Power Supplies have?
Cisco Power Supplies hold UL, CE, ENERGY STAR®, and RoHS certifications, ensuring compliance with global safety, environmental, and efficiency standards.
Can I mix different models of Cisco Power Supplies in one chassis?
Mixing different Cisco Power Supply models is not recommended. Use identical modules to maintain balanced load distribution and full redundancy.
How do I update firmware for an intelligent Cisco Power Supply?
Connect to the device’s management interface, upload the latest firmware via Cisco IOS or CIMC, and follow on-screen prompts to complete the update.
Frequently Asked Questions
What is a Cisco power supply and why is it important?
A Cisco power supply provides the electrical energy needed for switches, routers, and other networking devices, ensuring consistent uptime, redundancy, and reliable performance.
Are Cisco power supplies interchangeable across models?
No. Cisco power supplies are model-specific; always match the power supply’s part number and wattage rating to your exact switch or router series for compatibility.
How can I identify the correct Cisco power supply for my switch?
Check the switch model number, power rating (W), and type (AC, DC, or PoE) in the datasheet. Cisco part numbers like PWR-C1-350WAC or PWR-C2-1025WAC indicate compatibility.
What is the difference between internal and external Cisco power supplies?
Internal power supplies are built into the device chassis, while external power supplies are standalone units that connect to compact or modular switches for flexible power management.
What does PoE power supply mean in Cisco switches?
PoE (Power over Ethernet) power supplies deliver both data and electrical power through Ethernet cables to connected devices like IP phones, cameras, and wireless access points.
Can I use third-party power supplies with Cisco switches?
It’s not recommended. Only certified Cisco power supplies guarantee safety, proper voltage regulation, and compatibility with Cisco hardware and SmartNet warranties.
How do I know if my Cisco power supply is redundant?
Most enterprise Cisco switches support dual power supplies. If both slots are populated, the secondary unit provides redundancy for uninterrupted operation in case of failure.
What does hot-swappable mean for Cisco power supplies?
Hot-swappable power supplies can be replaced while the switch is running, without disrupting network operations, ensuring maximum uptime and service continuity.
What power capacities are available in Cisco power supplies?
Cisco offers power supplies ranging from 150W to over 3000W, depending on switch model, PoE requirements, and deployment environment.
What is the difference between AC and DC Cisco power supplies?
AC power supplies connect to standard electrical outlets, while DC power supplies integrate with telecom or industrial systems requiring direct current input.
Do Cisco power supplies support energy efficiency standards?
Yes. Many Cisco power supplies are ENERGY STAR® compliant and include high-efficiency modes to reduce energy consumption and operating costs.
How do I replace a Cisco power supply safely?
Power off the device (unless hot-swappable), disconnect cables, release latches, insert the new unit firmly, and verify LED indicators for power and status alignment.
Can one Cisco switch support multiple power supply types?
Some Catalyst and Nexus models allow mixing AC and DC supplies for flexible deployment, but both units must meet the model’s voltage and wattage specifications.
What are the most common Cisco power supply models?
Popular models include PWR-C1-350WAC, PWR-C1-715WAC, PWR-C2-640WAC, PWR-C4-950WAC, and PWR-1900-AC, supporting Catalyst 9000 and Nexus series switches.
How can I check the health of my Cisco power supply?
Use the CLI command “show power” or monitor via Cisco DNA Center or SNMP to check voltage levels, power draw, and operational status.
Do Cisco power supplies come with warranty coverage?
Yes. Standard warranties cover defects, while Cisco SmartNet provides 24x7 support, advance replacement, and software updates for extended protection.
Where can I buy genuine Cisco power supplies?
Purchase from authorized Cisco partners or resellers to ensure authenticity, warranty validity, and proper compatibility with your Cisco hardware.