Convert 5.5x2.1mm DC Power Supplies to 17 Popular Connector Sizes

Convert a standard 5.5x2.1mm DC power supply to a wide variety of DC barrel connector sizes used by laptops, networking equipment, LCD displays, CCTV systems, LED lighting, industrial controls and consumer electronics.

Each adapter features a 5.5x2.1mm female DC barrel jack input and a selected DC barrel plug output, allowing you to reuse existing power supplies without cutting wires, changing connectors or purchasing a new adapter.

Available Adapter Configurations

All adapter tips feature a standard 5.5x2.1mm female DC barrel jack input. Select the output connector size required for your application.

Why Use DC Adapter Tips?

• Reuse existing DC power supplies
• Eliminate the need for multiple adapters
• Quick solution for damaged or missing power supplies
• Ideal for testing and troubleshooting electronic equipment
• No soldering, wiring or modifications required
• Compact and easy to carry in a tool kit

Technical Specifications

Understanding DC Barrel Connector Sizes

DC barrel connector sizes are specified using two dimensions. The first value represents the outside diameter of the connector while the second value represents the inside diameter.

For example, a 5.5x2.1mm connector has an outside diameter of 5.5mm and an inside diameter of 2.1mm. Selecting the correct connector size helps ensure a reliable electrical connection and proper fitment.

Common Connector Applications

Common Applications

• Laptop power adapter conversion
• CCTV security camera systems
• LED lighting installations
• LCD monitors and displays
• Networking equipment
• Industrial electronics
• Arduino and Raspberry Pi projects
• Embedded system development
• Electronic repair and servicing
• Laboratory and bench testing

Features

• Standard 5.5x2.1mm female DC input connection
• Wide range of available connector sizes
• Compatible with many HP, Lenovo and Sony devices
• Plug-and-play operation
• No tools required for installation
• Compact and lightweight design
• Durable molded construction
• Suitable for commercial, industrial and hobby applications

Package Contents

• 1 x Selected Universal DC Adapter Tip

Frequently Asked Questions

Will these adapters work with center-positive power supplies?
These adapters only change the connector size. They do not alter polarity. Always verify voltage, polarity and current requirements before connecting equipment.

What is the input connector size?
All adapters feature a standard 5.5x2.1mm female DC barrel jack input.

Do these adapters change voltage or current?
No. These adapters only change the connector size and do not alter voltage, current or polarity.

Can I use these adapters with laptop power supplies?
Yes. Popular HP, Lenovo and Sony connector sizes are available.

Can these adapters be used for CCTV cameras and LED lighting?
Yes. Many CCTV systems, LED controllers and displays use compatible DC barrel connectors.

How can I determine my connector size?
Connector sizes are measured using the outside diameter and inside diameter of the barrel connector. Digital calipers provide the most accurate measurement.

Do I need any tools for installation?
No. These adapters install directly between your existing power supply and device.

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