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Here's a clear and professional product description for a DC Power Connector (Male + Female) 5.5mm x 2.1mm 12V Power Jack:

DC Power Connector (Male + Female) 5.5mm x 2.1mm – 12V Power Jack Adapter Set

Description:

This DC power connector set includes one male plug and one female jack, designed for reliable and secure 12V power connections. The standard 5.5mm outer diameter and 2.1mm inner diameter make it compatible with a wide range of DC-powered devices such as CCTV cameras, LED strip lights, routers, and other low-voltage electronics.

Features:

• Connector Size: 5.5mm (outer) x 2.1mm (inner)

• Rated Voltage: 12V DC (can typically support up to 24V depending on the wire gauge and application)

• Type: Male + Female Pair

• Material: High-quality plastic housing with metal contacts

• Color: Typically black with polarity indicators

• Usage: Ideal for DIY electronics, power supply extensions, and CCTV installations

Applications:

• CCTV camera power connections

• LED strip power adapters

• DIY electronics projects

• Replacing or extending DC power adapters

Installation:
Simply connect the wires to the screw terminals (if using the solderless version) or solder your wires for a more permanent setup. Match the polarity using the "+" and "−" indicators for safe operation.

Let me know if you need a technical datasheet or if you're listing it for sale (e.g., on Amazon or eBay) – I can adjust the tone accordingly.