USB to DC Power Adapter Cable – 5V to 9V/12V, LED Display, 8 Tips

USB to DC Power Adapter Cable with LED Display & 8 DC Jack Tips

Keep your router, mini fan, speaker, or LED display powered up — even during an outage — with this versatile USB to DC Power Adapter Cable. Simply connect it to any 5V USB power bank or wall charger and boost the output to either 9V or 12V DC, all displayed in real time on the built-in LED screen. Plug-and-play simplicity means no setup headaches — just plug in and go.

The cable ships with 8 interchangeable DC jack adapters covering the most common connector sizes, making it compatible with a wide range of low-power devices. At just 1 metre (39.37 in) long with a compact round-wire design, it's equally at home on a desk or packed in a travel bag.

Made in Mainland China.

Key Features

• Boost Conversion: Converts USB 5V input to selectable 9V or 12V DC output
• LED Display: Shows the output voltage value at a glance
• 8 DC Plug Tips Included: 5.5×2.1 mm, 5.5×2.5 mm, 3.5×1.35 mm, 4.0×1.7 mm, 6.0×4.0 mm, 6.3×3.0 mm, 4.7×1.7 mm, 5.5×1.7 mm
• Plug-and-Play: No drivers or software required
• Power-Bank Compatible: Keep your router or Wi-Fi running during power cuts via a standard power bank
• Compact & Portable: 1 m cable, lightweight, easy to carry

Specifications

What's in the Box

• 1 × USB to DC 5V/9V/12V Adapter Converter Cable
• 8 × DC Plug Tips (assorted sizes)

Important Notes

• Confirm your device requires 9V or 12V DC input before connecting.
• Verify that the DC connector size and polarity (positive centre, negative outer) match your device.
• Best used with devices drawing under 10W total. For routers or similar devices with up to 1A current draw, a 5V 2A USB source is recommended to avoid insufficient power delivery.

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Frequently Asked Questions

Q: What devices can I power with this USB to DC adapter cable?

A: This USB to DC power adapter cable is compatible with any low-power device that runs on 9V or 12V DC and draws under 10W — including routers, mini fans, speakers, and LED displays — provided the DC connector size matches one of the 8 included plug tips.

Q: Can I use this cable with a power bank during an outage?

A: Yes! The cable is fully compatible with standard 5V USB power banks. It boosts the 5V input to 9V or 12V output, letting you keep your router or Wi-Fi running even when mains power is unavailable. A power bank rated at 5V 2A or higher is recommended for stable operation.

Q: How do I know which DC plug tip to use?

A: Check your device's DC power port size (usually printed on the device or its manual). The 8 included tips cover the most common sizes: 5.5×2.1 mm, 5.5×2.5 mm, 3.5×1.35 mm, 4.0×1.7 mm, 6.0×4.0 mm, 6.3×3.0 mm, 4.7×1.7 mm, and 5.5×1.7 mm. Match the tip to your device's port for a secure fit.

Q: Does the LED display show the current output voltage?

A: Yes — the integrated LED display shows the selected output voltage (9V or 12V) in real time, so you always know what power level your connected device is receiving.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.