USB to RJ11 DC5.5x2.1mm Radar Detector Power Cable | Qme

Power your radar detector through any standard car USB port with this smart, compact USB to RJ11 Power Cable. Featuring a built-in voltage boost chip that steps up 5V USB output to the 12V your radar detector needs, this 1.5M copper-and-ABS cable is engineered for clean, stable power delivery — no bulky adapters or complicated setups required.

Why You'll Love This Radar Detector Power Cable

• Voltage Boost Technology: Built-in professional chip converts 5V car USB output to 12V, giving your radar detector the power it needs for consistent, optimal performance.
• Universal RJ11 + DC5.5x2.1mm Compatibility: Works with most popular radar detector brands that use the standard RJ11 or DC5.5x2.1mm power connector — no compatibility headaches.
• Premium Copper Conductors + ABS Housing: Durable copper wiring ensures efficient power transfer while the ABS casing resists everyday wear and heat from in-car use.
• Generous 1.5M Length: The 1.5-metre cable gives you plenty of reach from your car's USB port to the windshield or dash-mounted detector — no awkward stretching or tangled short cords.
• Neat & Low-Profile: A tidy, purpose-built cable keeps your car interior clean and clutter-free compared to using bulky cigarette-lighter adapters.
• Available in 2 Color Options: Choose the color that best suits your vehicle interior and personal style.

Specifications

• Cable Length: 1.5M
• Connector Type: USB-A (input) to RJ11 / DC5.5x2.1mm (output)
• Output Voltage: 12V (boosted from 5V USB)
• Materials: Copper conductors, ABS housing
• Colors Available: 2 options
• Brand: Qme

What's in the Box?

• 1 × USB to RJ11/DC5.5x2.1mm Radar Detector Power Cable (1.5M)

For guidance on safe electrical accessories and automotive electronics, visit the U.S. Consumer Product Safety Commission (CPSC).

Frequently Asked Questions

Q: What does this USB to RJ11 radar detector power cable do?

A: This cable allows you to power a radar detector directly from your car's USB port. A built-in chip boosts the 5V USB output up to the 12V required by most radar detectors, eliminating the need for a separate cigarette-lighter adapter.

Q: Which radar detectors is this USB RJ11 DC5.5x2.1mm power cable compatible with?

A: It is designed for broad compatibility with most radar detectors that use a standard RJ11 or DC5.5x2.1mm barrel power connector. If your detector uses either of these connector types, this cable should work seamlessly.

Q: Is the 1.5M cable length enough to reach from the USB port to my detector?

A: Yes — at 1.5 metres (approximately 5 feet), the cable provides ample reach from your vehicle's USB port (whether on the dashboard, centre console, or USB adapter) to a windshield-mounted or dash-mounted radar detector without excessive slack or tension.

Q: What materials are used in this radar detector power cable?

A: The cable uses copper conductors for efficient, low-resistance power transfer and a durable ABS plastic housing that holds up to the temperature variations typical of in-car use.