DC 12V Extension Cable 5.5mm×2.1mm | CCTV & LED Power Cord

DC 12V Power Extension Cable — 5.5mm × 2.1mm Male to Female

Extend your power reach without compromise. This heavy-duty DC 12V power extension cable features a reliable 5.5mm × 2.1mm male-to-female barrel connector, delivering a secure and stable connection for CCTV security cameras, LED light strips, LED signage, and a wide range of 12V DC devices. Available in 5M (16.4 ft) and 10M (32.8 ft) lengths to suit any installation scenario.

Key Features

• Universal 5.5mm × 2.1mm DC Barrel Connector: Designed to work with the most widely used DC power plug standard, compatible with 12V IP/CCTV cameras, DVRs, LED strips, LED signage, monitors, printers, sensors, audio equipment, car and boat accessories, and more.
• Easy Attach & Detach Design: The external plug system lets you connect and disconnect your power cord quickly and cleanly — no risk of damaging connectors during installation or repositioning.
• Choose Your Length: Available in 5M (~16.4 ft) or 10M (~32.8 ft) to give you the flexibility to reach power sources in hard-to-access locations.
• Durable Black PVC Jacket: Built to last with a tough outer casing and a wide operating temperature range of -20°C to 65°C, suitable for both indoor and outdoor use.
• Secure, Stable Connection: Precision-matched barrel sizing ensures a snug fit, minimizing voltage drop and signal interference along the extension run.

Specifications

• Voltage: DC 12V
• Connector Size: 5.5mm (outer) / 2.1mm (inner)
• Connector Type: Male to Female
• Available Lengths: 5M (16.4 ft) / 10M (32.8 ft)
• Color: Black
• Operating Temperature: -20°C to 65°C
• Country of Origin: Made in China

Compatible Applications

This cable is ideal for:

• CCTV & IP Security Cameras
• DVR/NVR Systems
• LED Light Strips & LED Signage
• Car, Boat & Marine Electronics
• Monitors & Printers
• Sensors & External Hard Drives
• Audio Mixing & Recording Equipment
• Any 12V DC device with a 5.5mm × 2.1mm power plug

Important Compatibility Notice

Not all electronic devices use the 2.1mm × 5.5mm plug size — particularly smaller digital devices. Before purchasing, verify your power adapter's plug dimensions by measuring the inner diameter (2.1mm) and outer diameter (5.5mm). Also ensure your power adapter can supply sufficient current through the full cable length. When using this extension cable, always unroll it completely and keep it away from high-heat environments.

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For guidance on safely using electrical extension cords and power cables, refer to the U.S. Consumer Product Safety Commission (CPSC) Electrical Safety resources.

Learn more: Power cable

Frequently Asked Questions

Q: What devices are compatible with this DC 12V power extension cable?

A: This cable is compatible with any device that uses a standard 5.5mm × 2.1mm DC barrel connector and operates on 12V DC power. Common compatible devices include CCTV and IP security cameras, DVR systems, LED light strips, LED signage, monitors, sensors, car and boat electronics, and audio recording equipment.

Q: How do I know if my power adapter will work with this cable?

A: The best way to confirm compatibility is to physically measure your power adapter's plug — the inner diameter should be 2.1mm and the outer diameter should be 5.5mm. Also ensure your adapter can supply enough current to power your device reliably through the full cable length.

Q: Can this cable be used outdoors?

A: Yes. The cable is rated for an operating temperature range of -20°C to 65°C, making it suitable for both indoor and outdoor installations such as outdoor CCTV cameras or landscape LED lighting. Always unroll the cable fully during use and avoid exposing it to extreme heat sources.

Q: What is the difference between the 5M and 10M versions?

A: The 5M version provides approximately 16.4 feet of extension, while the 10M version provides approximately 32.8 feet. Choose based on the distance between your power source and the device you need to power. For longer CCTV runs or installations in large spaces, the 10M option offers greater flexibility.