Overview
The DC Barrel Power Jack Male Connector Wire is a ready-to-use, high-quality DC power plug designed to deliver reliable low-voltage DC power to a wide range of electronic devices and DIY projects. Featuring the standard 5.5mm x 2.1mm male plug with pre-attached, color-coded wires, this connector removes the need for soldering and speeds up installations.
Key Features
- Standard DC Plug (5.5mm x 2.1mm) — Compatible with most DC power adapters and device inputs.
- Pre-Wired Design — Red and black leads already attached for quick hook-up and reduced assembly time.
- High Conductivity Copper Wires — Ensures efficient, low-resistance power delivery for stable operation.
- Color-Coded Wires — Red (positive) and black (negative) for easy polarity identification.
- Durable Construction — Flexible insulation and a robust plug housing resist bending, cracking, and repeated use.
- Secure Fit — Firm locking connection reduces the chance of accidental disconnection.
- Wide Compatibility — Suited for LED strips, CCTV cameras, routers, development boards and more.
Technical Specifications
- Plug Type: Male DC barrel plug
- Size: 5.5 mm outer diameter x 2.1 mm inner diameter
- Leads: Pre-attached red (positive) and black (negative)
- Conductors: High-conductivity copper
- Use: Low-voltage DC power connections for electronics and small appliances
Compatible Devices and Applications
This pre-wired DC barrel connector is ideal for a wide variety of devices and projects:
- Development boards: Arduino, Raspberry Pi, ESP32 and other microcontroller boards that accept DC barrel inputs
- Surveillance: CCTV cameras and DVR systems
- Lighting: LED strips, drivers and small lighting systems
- Networking: Routers, modems and small appliances that use a barrel jack
- Repairs and replacements: Replacing damaged or worn DC power cables
- Bench and hobby: Quick power leads for bench testing and DIY electronics
Wiring, Polarity and Installation Tips
- Confirm the polarity of your device before connecting. The wires are color-coded: red is typically positive and black is typically negative. Verify with your device documentation.
- Ensure your power adapter voltage and current meet the requirements of the device. This connector transfers DC power; it provides no voltage regulation.
- For secure installations, route the cable to avoid sharp bends and strain on the plug. Use cable ties or strain relief where needed.
- If you need to extend the cable length, use appropriately rated wire and connectors to maintain safety and performance.
Why Choose This DC Barrel Power Jack
Pre-wired and ready to use, this DC barrel jack simplifies power connections for hobbyists, students and professionals. It saves time by eliminating soldering and reduces installation errors with clear, color-coded wiring. The robust construction and secure fit make it dependable for repeated use in home, workshop and commercial environments.
Packaging and Notes
- Sold as a single pre-wired male DC barrel connector (plug with attached wires).
- Images are for illustration purposes only.
- Always check compatibility with your device before purchase.
Quick FAQ
Does this connector fit most adapters?
Yes, it fits standard 5.5 mm x 2.1 mm DC barrel sockets, which are commonly used across many adapters and devices.
Can I use it for high-current devices?
It is suitable for typical low-voltage DC applications. Verify the wire gauge and adapter current capability for higher current needs to ensure safe operation.
Is soldering required?
No. The unit comes pre-wired so you can connect quickly without soldering.












Tushar (verified owner) –
Tushar –