DC Power Conversion Plug Adapter 5.5x2.1 Female to 4.0x1.7 Male Black Round Connector

This DC power conversion plug adapter solves the common problem of mismatched power connectors. It converts a standard 5.5x2.1mm female DC socket to a 4.0x1.7mm male plug, allowing you to connect devices that require a smaller male input. Whether you are adapting a power supply for a router, CCTV camera, LED strip, or other small electronics, this adapter provides a straightforward solution. The round connector is produced using injection moulding for consistent shape and reliable fit. It comes in a black finish and includes one adapter piece per pack.

Features and Construction

This adapter is designed for a single, practical purpose – changing plug sizes in DC power connections. Its construction is simple and functional.

Material and Build

The connector body is made from plastic via injection moulding. This process ensures a uniform, rigid shape that holds the metal contacts securely. The black colour is low-profile and blends with most cables and devices.

Size and Practical Fit

The female end accepts a 5.5x2.1mm plug (outer diameter 5.5mm, inner pin 2.1mm). The male end measures 4.0x1.7mm (outer diameter 4.0mm, inner pin 1.7mm). This specific size conversion is common for CCTV cameras, power adapters, and various DC-powered devices.

Uses and Placement

This adapter is best suited for indoor use with low-voltage DC power supplies. It can be used in home, office, or workshop settings.

Event or Professional Use

Technicians and installers can use this adapter to quickly match power supplies to equipment without replacing entire cables. It is handy for CCTV installations, audio-visual setups, and repair work.

Everyday Home Use

At home, it lets you use a spare power supply with a device that has a different male plug size. It is useful for LED lighting, routers, modems, and other small electronics that use DC barrel jacks.

Benefits and Buying Value

This adapter offers a low-cost, practical way to resolve connector size mismatches without buying a new power supply.

Reuse and Low Maintenance

There are no moving parts or batteries to replace. Simply plug it in and it works. The injection-moulded body resists everyday handling and provides a stable connection.

Why Choose This Product

If you have a device with a 4.0x1.7mm male input and a power supply with a 5.5x2.1mm female socket, this adapter bridges the gap. It is a simple, specific solution for a frequent compatibility issue in DC-powered electronics.