DC Power Extension Cord 5.5mm×2.1mm Barrel – 5M & 10M

Extend Your DC Power Reach Effortlessly

Running short on cable length between your power adapter and device? The DC Power Extension Cord with a 5.5mm × 2.1mm barrel connector gives you the extra reach you need — in either a 5-metre or 10-metre length. Built with 22AWG premium copper conductors (17/0.15 AS×2 stranded) for excellent electrical conductivity and minimal voltage drop, this cable keeps your equipment running reliably even over longer distances. Made in Mainland China.

Key Features

• Premium Copper Construction: 22AWG, 17/0.15 AS×2 stranded copper wire delivers low resistivity and strong, consistent conductivity.
• Choice of Lengths: Available in 5M and 10M — ideal when your device's optimal mounting spot is far from a power outlet.
• Broad Voltage Compatibility: Designed for 5–24V DC/AC equipment using a standard 2.1mm × 5.5mm barrel plug.
• Wide Device Support: Compatible with CCTV and IP security cameras, LED strip lights, IR illuminators, LED signage, monitors, printers, sensors, DVRs, external hard drives, audio mixers, and more.
• Female-to-Male Design: Standard barrel jack (female) to barrel plug (male) configuration for straightforward inline extension.
• Durable Insulation: Flexible outer jacket resists kinking and stands up to everyday routing through walls, ceilings, or along baseboards.

Specifications

⚠️ Please Note Before Purchasing

• This cable is designed for 5–24V DC/AC devices only — do not use with higher-voltage equipment.
• Not all devices use a 2.1mm × 5.5mm plug. Before ordering, measure the inner diameter (ID) and outer diameter (OD) of your power adapter plug to confirm compatibility.

Related Products You May Like

• 1-Channel Relay Module DC 3.3V–24V Optocoupler for Arduino
• 1.8M USB-C to HDMI Cable 4K – MacBook, Laptop & Phone
• 1.8M DisplayPort to HDMI Cable 4K – DP Adapter for PC & TV

For guidance on safe use of low-voltage electronics and cabling in home and commercial installations, visit the U.S. Consumer Product Safety Commission (CPSC).

Learn more: Coaxial power connector

Frequently Asked Questions

Q: What devices is this DC power extension cord compatible with?

A: This 5.5mm × 2.1mm DC power extension cord is compatible with any 5–24V DC/AC device that uses a standard 2.1mm inner diameter, 5.5mm outer diameter barrel plug. Common applications include CCTV cameras, IP cameras, LED light strips, IR illuminators, LED signage, monitors, DVRs, printers, sensors, external hard drives, and audio equipment.

Q: How do I know if my device's plug fits this cable?

A: The most reliable way is to measure your power adapter plug directly. The inner diameter (ID) should be 2.1mm and the outer diameter (OD) should be 5.5mm. If your plug measures differently, this extension cord may not be compatible.

Q: Will there be voltage drop over the 10-metre length?

A: The cable uses 22AWG premium copper conductors (17/0.15 AS×2), which are specifically chosen for their low resistivity. Under normal 5–24V low-current loads, voltage drop across even the 10M length is minimal and unlikely to affect device performance.

Q: Can this cable be used outdoors?

A: While the cable has a durable, flexible insulated jacket, it is primarily designed for indoor use. If routing outdoors, ensure all connections and the cable run are protected from moisture and direct exposure to the elements.