1-[Good Feature]: This DC adapter is primarily used to connect a DC power extension cord to an existing power source without cutting or splicing wires. 2-[Perfect Size]: Size: 41 x 12mm / 1.61 x 0.47 inch (L*D); Connector Size: 5.5mm x 2.1mm Female to 3.5mm x 1.35mm Male. 3-[Wide Application]: Widely used in small electronics projects and CCTV applications, such as Media Players, MP3/MP4 players, Audio-Video Equipment, Note Book, Mobile Phones, Smart Phone, Car Audio, and so on. 4-[Unique Design]: The compact design allows for better space savings, and the pedals allow for easy insertion and removal. 5-[Tips]: Please confirm the required specifications before purchasing. About the product:
This DC adapter is primarily used to connect a DC power extension cord to an existing power source without cutting or splicing wires. Widely used in small electronics projects and CCTV applications, such as Media Players, MP3/MP4 players, Audio-Video Equipment, Note Book, Mobile Phones, Smart Phone, Car Audio, and so on.

Good choice for you:
Made of metal and plastic, it is durable and wear-resistant.
The compact design allows for better space savings, and the pedals allow for easy insertion and removal.

Specification:
Connector Type: Female to Male
Size: 41 x 12mm / 1.61 x 0.47 inch (L*D)
Connector Size: 5.5mm x 2.1mm Female to 3.5mm x 1.35mm Male
In the package of: 5 Pack x DC Connectors

Easy to install:
You could directly use this coupler to connect two cables together.

Tips:
Please confirm the required specifications before purchasing.