12ft UL-Certified 18AWG DC Extension Cable (2.1mm x 5.5mm) - Heavy Duty, White | HDCX12W
Heavy-Duty 12ft DC Power Extension Cable — 18 AWG UL2464
| Part: HDCX12W
The HDCX12W is the white-jacket version of our best-selling HDCX12T — delivering the same industrial-grade 12-foot reach with an 18 AWG pure copper core and UL 2464-certified flame-retardant jacketing, in a clean white finish that blends seamlessly into light-colored walls, ceilings, and cabinetry. Ideal for LED lighting installations, retail displays, and any setup where cable visibility matters.
Technical Specifications
- Part Number: HDCX12W
- Connector Type: 2.1mm (ID) x 5.5mm (OD) — center positive compatible
- Wire Gauge: 18 AWG (higher current capacity vs. standard 22AWG/24AWG)
- Cable Length: 12 feet (3.66 meters)
- Connectors: 1x Female Jack (input) + 1x Male Plug (output), molded strain relief
- Jacket: UL 2464 component rated — flame retardant, industrial grade
- Color: White
- Conductor: Pure copper (not CCA)
Common Use Cases & Compatible Devices
- Under-cabinet and over-cabinet LED lighting (12V, 24V)
- Retail and commercial display lighting where white cable blends in
- CCTV and IP security cameras in light-colored environments
- Home automation and smart home device power extensions
- Routers, modems, and networking hardware
- DVRs, NVRs, and external hard drives
- Audio mixing boards and recording equipment
- Any 2.1mm x 5.5mm DC-powered device requiring a discreet 12-foot white cable run
Why 18 AWG for a 12-Foot Run?
Voltage drop increases with cable length. At 12 feet, using an undersized 22AWG or 24AWG cable can cause noticeable performance issues in sensitive electronics. The HDCX12W's 18 AWG construction maintains stable voltage delivery across the full 12-foot length — the correct choice for longer DC power runs where performance and aesthetics both matter.
Frequently Asked Questions
Q: What is the maximum current this cable supports?
A: The 18 AWG copper conductors support up to approximately 5–7A at 12V for a 12-foot run. Always verify against your power supply's rated output.
Q: Is this cable center positive or center negative?
A: The 2.1mm x 5.5mm barrel connector passes through whatever polarity your power supply outputs. Polarity is not fixed by the cable itself.
Q: Will this work with my 12V or 24V LED strip?
A: Yes. Compatible with any DC power supply using a 2.1mm x 5.5mm barrel connector, regardless of voltage (within the cable's rated current limits).
Q: Is a black version available?
A: Yes — see the HDCX12T for the black version of this cable.
Q: Is this available for bulk or OEM orders?
A: Yes — we maintain high inventory for OEM and commercial projects. Contact us for volume pricing.
