12ft White DC Extension Cable 18AWG (2.1mm x 5.5mm) - Heavy Duty | HDCX12W
Heavy-Duty 12ft DC Power Extension Cable (White) — 18 AWG UL2464 | Part HDCX12W
The HDCX12W delivers an industrial-grade 12-foot reach with an 18 AWG pure copper core and UL 2464-certified flame-retardant jacketing. Designed with a clean white finish, it blends seamlessly into light-colored walls, ceilings, and cabinetry for clean installations.
Technical Specifications
- Part Number: HDCX12W
- Connector Dimensions: 2.1mm Inner Diameter (ID) x 5.5mm Outer Diameter (OD)
- Wire Gauge: 18 AWG Heavy-Duty Pure Copper (Non-CCA)
- Length: 12 Feet (3.66 Meters)
- Connector Gender: 1x Female Jack (Input) to 1x Male Plug (Output)
- Cable Rating: UL 2464 Flame-Retardant Component Rated
- Jacket Color: White
- Polarity: Passes through source polarity (Center Positive compatible)
18 AWG vs. Standard DC Extension Cables
Standard DC cables (22 AWG or 24 AWG) use thin conductors that cause severe voltage drop and heat buildup over longer runs. The HDCX12W uses thick 18 AWG copper to keep your device running safely at full voltage.
| Specification | Standard Cable (22/24 AWG) | HDCX12W (18 AWG) |
|---|---|---|
| Max Recommended Current | 1A – 2A Max | Up to 5A – 7A @ 12V |
| Voltage Drop (12ft Run) | High (causes LED flickering/device resets) | Minimal / Negligible |
| Conductor Material | Often Copper-Clad Aluminum (CCA) | 100% Pure Copper Core |
| Jacket Durability | Basic PVC | UL 2464 Flame Retardant |
Common Applications & Compatibility
- LED Lighting: Under-cabinet, over-cabinet, and architectural LED strip lighting (12V / 24V).
- Security Systems: CCTV cameras, IP cameras, DVRs, and NVR power supplies.
- Smart Home & Networking: Routers, modems, smart hubs, and IoT controllers.
- Audio & Commercial Displays: Audio mixing boards, retail display fixtures, and digital signage.
Frequently Asked Questions
What is the maximum current this cable supports?
The 18 AWG pure copper conductors support up to approximately 5–7A at 12V across a 12-foot run. Always verify requirements against your power supply's output rating.
Is this cable center positive or center negative?
The 2.1mm x 5.5mm barrel connector is non-polarized passthrough—it delivers whatever polarity your power supply outputs.
Will this work with 12V or 24V systems?
Yes. It is compatible with any low-voltage DC power supply using standard 2.1mm x 5.5mm connectors regardless of voltage (within safety limits).
Is a black version available?
Yes. Search for part number HDCX12T for the black jacket version of this cable.
