Cisco AIR-PWRINJ4 Networking Network Accessories
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AIR-PWRINJ4 Cisco Power Injector Refurbished

Availability: In Stock
Part Number#: AIR-PWRINJ4
List Price was: $753.85
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Short Description:
AIR-PWRINJ4 Aironet Power Injector for 1250 Series Access Points | Made by Cisco | Refurbished
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

Enhancing Network Performance

The AIR-PWRINJ4 Cisco Aironet Power over Ethernet (PoE) Injector is a device used to supply power to devices that are not PoE-enabled, such as wireless access points or IP phones. The purpose of the AIR-PWRINJ4 is to enhance the network performance of these devices by providing a consistent and reliable power source.

By using the AIR-PWRINJ4, network administrators can eliminate the need for additional power sources, reducing the amount of cable clutter in the network and simplifying the overall installation process. This also reduces the cost associated with installing new power sources and eliminates the need for electrical outlets near the device.

The AIR-PWRINJ4 supports both 10/100/1000 Ethernet and Fast Ethernet, ensuring that the device is compatible with a wide range of networking devices. The device is equipped with a Gigabit Ethernet port, providing high-speed connectivity and ensuring that the network performance of the device being powered is not impacted.

In addition, the AIR-PWRINJ4 is designed to be compact and lightweight, making it easy to install and manage. It is also equipped with a reset button, which allows network administrators to easily reset the device if necessary.

Increasing Efficiency with Aironet PoE Injector

The AIR-PWRINJ4 Cisco Aironet PoE Injector is a device that provides power to Cisco Aironet wireless access points through Power over Ethernet (PoE) technology. It allows the access points to receive power from a switch that does not support PoE, or from a non-PoE power source.

To increase the efficiency of the AIR-PWRINJ4 Cisco Aironet PoE Injector, there are several measures that can be taken:

  • Proper Placement: Place the AIR-PWRINJ4 Cisco Aironet PoE Injector close to the access points to reduce the length of the cable and minimize power loss.
  • Power Management: Enable power management on the access points to reduce power consumption during idle periods, which helps to reduce the overall power consumption of the network.
  • Cable Quality: Use high-quality Ethernet cables to ensure minimal power loss during transmission.
  • Use High-Quality Power Supply: Use a high-quality, regulated power supply to ensure consistent power delivery to the AIR-PWRINJ4 Cisco Aironet PoE Injector.
  • Load Balancing: Ensure that the load is evenly distributed across all access points to reduce the overall power consumption of the network.

By implementing these measures, the efficiency of the AIR-PWRINJ4 Cisco Aironet PoE Injector can be increased, leading to better network performance and lower operating costs.

Maintenance and Upgrades for Aironet PoE Injector

The AIR-PWRINJ4 Cisco Aironet PoE Injector is a device that provides Power over Ethernet (PoE) to wireless access points and other network devices. To ensure optimal performance and security, it is important to keep this device up-to-date with the latest maintenance and upgrades.


  • Regular cleaning: Dust and debris can accumulate on the device over time, which can cause heat buildup and potentially cause damage. Cleaning the device regularly will help maintain its performance and extend its lifespan.
  • Firmware updates: It is important to regularly check for firmware updates to ensure that the device is operating with the latest security patches and bug fixes.
  • Check for electrical issues: Regularly check for electrical issues such as power supply interruptions, surges, and over-voltage conditions.


  • Upgrade to the latest version of the device software: Upgrading to the latest version of the software can bring improvements in performance and security, as well as new features.
  • Hardware upgrades: As technology advances, hardware upgrades may be available to improve the performance and capabilities of the device.
  • Power supply upgrades: Upgrading the power supply can improve the power output and ensure reliable operation of the device.

It is important to keep the AIR-PWRINJ4 Cisco Aironet PoE Injector updated and properly maintained to ensure optimal performance and security. Regular maintenance and upgrades can help extend the lifespan of the device and keep it running smoothly.

General Information

  • Manufacturer Cisco Systems, Inc
  • Manufacturer Part Number AIR-PWRINJ4
  • Brand Name Cisco
  • Product Model AIR-PWRINJ4
  • Product Name Power over Ethernet Injector
  • Product Type PoE Injector

Power Description

  • Output Voltage 48 V DC
  • Frequency 50 Hz
  • Frequency 60 Hz


  • Compatibility
  • Cisco Aironet 1250 Series Access Points
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

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.

Here, you can check more available conditions of your desired product AIR-PWRINJ4 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.
Final Sale items are non-returnable/refundable in any situation. Any question? please ask our team before the shipment.

Important notes:

We can provide additional warranty service/support for any product you purchase from us if you need additional warranty coverage before finalizing the order from ALLHDD.Com. You need to ask in live chat/help or call us for more information.

Individual product warranty mentioned on each item product description page/detail page.

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Worldwide Shipping Options:

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Important notes:

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