Cisco C3KX-PWR-350WAC AC Power Supply
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Why Cisco C3KX-PWR-350WAC 350 Watt AC Power is the best?

Availability: In Stock
Part Number#: C3KX-PWR-350WAC
3% Discount on Checkout

Short Description:
C3KX-PWR-350WAC 350 Watt for the Catalyst 3750-X Series AC Power Supply | Made by Cisco | Refurbished

Interface Types of This Product: Switching PSU

Product Condition:
Warranty provided by ALLHDD.COM:
90 Days
We are giving specifications below, why one should consider procuring Cisco Switching PSU Power Supply features, a general overview, description, performance specification, relevant images, a competitive price infographic, and technical information about the C3KX-PWR-350WAC model with compatibility.

Power and Innovation

The C3KX-PWR-350WAC Cisco 350 Watt AC Power Supply is a high-performance power supply that provides reliable and efficient power for Cisco networking equipment. It is specifically designed for use with Cisco Catalyst 3560-X, 3750-X, and 3850 series switches.

One of the key features of the product is its ability to deliver a steady and consistent power output. The power supply is equipped with a built-in power management system that monitors and regulates the power output to ensure that the connected devices receive the appropriate amount of power. This helps to prevent power overloads and ensures that the equipment runs at optimal performance levels.

Another important feature of the part is its ability to work in different power environments. The power supply is compatible with both 110-120V and 220-240V power inputs, which makes it suitable for use in different regions around the world. It also has a wide operating temperature range, which allows it to operate in extreme temperatures without compromising its performance.

The product also has a high efficiency rating, which helps to reduce power consumption and lower operating costs. The power supply is Energy Star certified, which means it meets strict energy efficiency standards set by the U.S. Environmental Protection Agency (EPA).

High Performance of AC Power Module

The Cisco C3KX-PWR-350WAC is a 350 watt AC power supply designed for use in Cisco Catalyst 3560-X and 3750-X Series switches. It is a hot-swappable power supply, meaning it can be easily replaced without shutting down the switch.

This power supply provides a steady and reliable source of power for the switch, ensuring that it can operate at optimal performance levels. It is also designed to be energy efficient, reducing the overall power consumption of the switch and helping to lower operating costs.

This is also designed to meet industry standards for safety and electromagnetic compatibility (EMC), ensuring that it can be safely used in a variety of environments.

Resiliency and High Availability

The C3KX-PWR-350WAC Cisco 350 Watt AC Power Supply is designed with resiliency and high availability in mind. It is built to provide reliable power to Cisco Nexus switches, helping to ensure that the network remains up and running even in the event of power outages or other disruptions.

One key feature of this power supply is its ability to provide redundant power to the switch. This means that if one power supply fails, the other one can take over, ensuring that the switch continues to function without interruption.

In addition, the power supply has built-in over-current and over-voltage protection, which helps to prevent damage to the switch in the event of a power surge or other electrical problem.

The model of power supply is also designed to be easy to install and maintain. It can be quickly and easily replaced if needed, and it has a compact form factor that allows it to fit into tight spaces in the network equipment rack.

General Information about this Cisco C3KX-PWR-350WAC

  • Manufacturer: Cisco
  • Model Number or SKU# C3KX-PWR-350WAC
  • Product Type: Power Supply

Power Description for 350 Watt Power Supply

  • Power Supply Type: Switching PSU
  • Input Voltage 230 V AC
  • Input Voltage 120 V AC
  • Output Voltage -56 V @ 6.25 A
  • Output Power 350 W

Performance of Switching Power Supply Unit

  • Switching Fabric 160 Gbps
  • DRAM 256 MB (512 MB for 3750X-12S and 3750X-24S)
  • Flash 64 MB (128 MB for 3750X-12S and 3750X-24S)
  • Total VLANs 1005
  • VLAN IDs 4K
  • Total Switched Virtual Interfaces (SVIs) 1K
  • Jumbo Frame 9216 Byte

Environment Parameter

  • Operating temperature (T-T) -5 - 45 °C
  • Storage temperature (T-T) -40 - 70 °C
  • Operating relative humidity (H-H) 5 - 90%
  • Operating temperature (T-T) 23 - 113 °F

Compliant Standards

  • BSMI, CISPR 22, CISPR 22 Class A, CISPR 24, CSA C22.2 No. 60950-1, EMC, EN 61000-3-2, EN 61000-3-3, EN 61000-4-2, EN 61000-4-3, EN 61000-4-4, EN 61000-4-5, EN 61000-4-6, EN 61000-6-1, EN300-386, EN50082-1, EN55022 Class A, EN55024, FCC Part 15 A, GOST, ICES-003 Class A, MIC, RoHS, UL 60950-1, VCCI Class A ITE

Miscellaneous o

  • Hot Pluggable: Yes
  • Fan Info: Front to Back Airflow

Dimensions and Weight

  • Height: 1.6 Inch
  • Width: 3.3 Inch
  • Depth: 11.8 Inch
  • Length: 16.8 Inch
  • Weight: (Approximate) 2.76 Lbs


  • Cisco Catalyst 3560-X and 3750-X Series Switches

About Refurbished Products

Refurbished products are typically refurbished by an Original Manufacturer or an affiliate of the manufacturer or 3rd party facility. This product may have minor blemishes due to normal product usage and doesn't necessarily come with documentation and software unless indicated, but has been well tested and generally has never had any defects.

Switching power supplies are not new inventions, first used in the 1970s. Today, they form the bulk of power supplies in the market for industrial and consumer use. As technology advances, the need for more efficient power supplies increases. The formerly famous linear power supplies cannot keep up with the new requirements, leading to the rise of switch-mode power supplies.

Efficient Thermal Management System

Power supplies generate a lot of heat in the conversion process. Not all the input AC power is converted to output DC power. The rest is lost in the form of heat, which increases the temperature inside a power supply. The switching power supplies have better thermal management, which prevents excess heating. So, they can perform well in many industrial applications.

High Efficiency

One of the reasons leading to the rise of switch mode power supply is the high efficiency. Apart from having an efficient thermal management system, the power conversion frequency is above 90%. With this high rate, you don't have to worry about power wastage even if the SMPs remain in constant operation. The saved power may not be significant for home applications, but industrial users can feel the relief on their utility bills.

Low-Cost and Long Service Life

Most of the electronic components in power supplies degrade at high temperatures. A switching power supply maintains optimal thermal conditions even if used continuously. This reduces the operating cost and lengthens the lifespan of the entire power supply unit. We can also say that you get a more reliable power supply that is not prone to hardware failure.

Low Weight and Ultimate Protection

The use of switching elements in a switch mode power supply reduces the weight of the entire unit. The size of the required transformer is also reduced. This property is ideal if manufacturing or shopping for a power supply for your portable device. These power supplies also show excellent protection properties. The protection circuitry offers short-circuit, overload, overvoltage, overcurrent, and overheating protection. They are safe for use under any conditions.

Power Factor Correction Mechanism

The ability of a switching power supply to correct power factor is on another level. The harmonics your equipment feeds back to a power system can see the authorities increasing your utility bills. Using switching power supplies takes you off the hook as the PF will always be within the permitted value.

What to Know When Shopping for a New Power Supply?

Busying a switch-mode power supply presents a challenge to many people. That is probably because of the many models and form factors available in the market today. To get it right, understand the power requirement of your system and the form factor of the power supply that will fit in the casing. You should not have any problems if you consider the power factor model.

Shop for the best power supplies at ALLHDD for a better experience. You will not have to worry about anything because we have a customer support team to help you make the right decision. Contact us in case of any queries.

Here, you can check more available conditions of your desired product C3KX-PWR-350WAC at a competitive price. We are trying our best to meet your needs on the enterprise-level computer, server, data centre, and networking hardware. You are welcome to ask our live chat or get live representative support over the phone.


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ALLHDD guarantees that the products will not have defects in material that will affect the product's functionality during the Standard Warranty Period. The warranty period starts when the merchandise/items from our warehouse.

What does ALLHDD.Com warranty cover?

30-days to 3 years warranty:

Replacement or refund. In the case of material defects, we will try to replace the product first. The product will be replaced before the expiration of the original warranty. For any failure of hardware, if we cannot process the replacement of the product(s)/model(s), we will refund the original selling/invoiced price. The shipping costs and sales tax, if any, are non-refundable. ALLHDD retains the right to decide whether the item(s) will process for replacement or refund.

What is not covered by our warranty?

The reason why our warranty does not cover any problem caused by the following conditions:

(a) misuse of hardware; accidental damage; carelessness product(s) damage; shock; temperature beyond the specification of any product; faulty installation; operation; modification of goods;

(b) any misuse outside the instructions in the user manual for any specific product;

(c) damaged caused by other hardware or equipment. The warranty will void if the item is returned with physical damage, damage to the retail box, removed from the box, counterfeit labels/labelled by them, or any modifications of internal and external covers. Data loss or damages to any other equipment we do not cover by our offered warranty.

What is the Manufacturer/Brand Warranty?

In general, a manufacturer's warranty service/support is a written guarantee to the buyer of a product. Its terms assure the replacement or repair of the product, if necessary, within a specified period after the purchase (2-5 years depending on the brand/manufacturer). It is typically included in the price of the product. Products are brand new and sealed and the original manufacturer box is complete with the Manufacturer's genuine warranty. For most of the brand new/retail products that come with the manual and box, exceptions may apply (i.e., Cisco, Juniper Networks).

For the server parts (i.e., Dell, HPE) to get Full coverage of the warranty server must have a full 3- 5 years warranty. However, ALLHDD.COM will cover the warranty duration if any Manufacturer doesn't support the advertised warranty and there is no refund for those.
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