3ft UL-Certified 18AWG DC Extension Cable (2.1mm x 5.5mm) - Heavy Duty, White | HDCX3W
Note: This 3ft white cable is currently out of stock. We recommend our 6ft Heavy Duty DC Extension Cable (HDCX6W) as a high-quality alternative.
Heavy-Duty 3ft DC Power Extension Cable — 18 AWG UL2464 | Part #: HDCX3W
The HDCX3W is the white-jacket version of our compact HDCX3T — a short, industrial-grade DC power extension cable for installations where aesthetics matter and you just need a little more reach. Featuring an 18 AWG pure copper core and UL 2464-certified flame-retardant jacketing, it delivers reliable power with minimal voltage drop in a clean white finish that blends into light-colored walls and cabinetry.
Technical Specifications
- Part Number: HDCX3W
- 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: 3 feet (0.91 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 LED lighting where a white cable blends in (12V, 24V)
- Retail and home automation setups in light-colored environments
- CCTV and IP security cameras where the power supply is nearby
- Routers, modems, and networking hardware
- Any 2.1mm x 5.5mm DC-powered device needing a short, discreet white extension
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 3-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: Is a black version available?
A: Yes — see the HDCX3T for the black version of this cable.
Q: Need a longer white cable?
A: See the HDCX6W (6ft) or HDCX12W (12ft) for longer heavy-duty white options.
