5.5x2.1 Female to 4.0x1.7 Male DC Power Adapter Plug for Device Compatibility

This DC power adapter converts a standard 5.5x2.1mm female port to a 4.0x1.7mm male plug, solving the common problem of mismatched power connectors between devices. Whether you are powering a CCTV camera, router, LED light, or other electronic equipment, this adapter allows you to use an existing power supply with a different plug size. The round shape and injection-moulded construction ensure a stable connection without the need for soldering or modification. Supplied in black colour, it is a practical accessory for electronics repair, replacement, or custom power setups.

Features and Construction

The adapter is built for direct plug-and-play conversion without additional wiring. Its simple design focuses on reliable physical connectivity between two common DC power standards.

Material and Build

Made using an injection production process, the adapter offers consistent shaping and secure contact between connectors. The outer shell is black plastic, with metal pins for conductivity. No specific material grades or certifications are provided in the source text.

Size and Practical Fit

The female end accepts a 5.5mm outer diameter and 2.1mm inner diameter male plug. The male end has a 4.0mm outer diameter pin with a 1.7mm inner hole. These are standard sizes found on many power adapters and electronic devices.

Uses and Placement

This adapter is intended for indoor use with low-voltage DC power connections. It helps extend the usability of power bricks or wall adapters across equipment with different input jacks.

Event or Professional Use

Ideal for technicians, installers, or repair shops that need to adapt power supplies for CCTV systems, security cameras, or network equipment. It reduces the need to carry multiple dedicated power bricks.

Everyday Home Use

Useful for home electronics where a device's power supply has the correct voltage but the wrong plug size. It also serves as a simple replacement part for lost or damaged connector tips.

Benefits and Buying Value

The adapter offers a low-cost solution to a specific connectivity problem, without requiring any technical skills to install. It provides a clean conversion between two widely used DC power plug standards.

Reuse and Low Maintenance

The adapter is a passive component with no moving parts or electronics, requiring no maintenance. It can be reused across multiple setups as long as the plug sizes match.

Why Choose This Product

If you have a 5.5x2.1 power supply and need to power a device that accepts a 4.0x1.7 male plug, this adapter is a direct, no-solder solution. It is a straightforward accessory for cable management and device compatibility.