USB 5V to 12V DC Converter Cable – 5.5x2.1mm LED Strip Adapter

$4.01 $4.75

Power Your 12V Devices from Any USB 5V Source

This compact USB to DC 12V step-up converter cable lets you run 12V devices — such as LED strip lights, car air purifiers, and WiFi routers — directly from a standard 5V USB power source. No wall adapter required. Simply plug the USB-A end into any 5V USB port (power bank, computer, car charger) and power your 12V device via the 5.5×2.1mm DC barrel connector.

It's an ideal backup solution for routers during power outages, a convenient way to power LED strips from a USB port, or a versatile adapter for any low-draw 12V device (under 6W).

Key Specifications

Input: DC 5V / 2A — Standard USB 2.0 Male
Output: DC 12V / 0.5A
Max Output Power: 6W
Cable Length: Approx. 100 cm (1 meter)
Output Connector: 5.5×2.1mm DC Barrel Plug (center positive, outer negative)
Color: Black

Common Use Cases

✅ Keep your WiFi router running during a power outage using a power bank
✅ Power LED strip lights from a USB port in your car or home
✅ Run a 12V car air purifier from a USB power source
✅ Any 12V device drawing less than 6W total

What's in the Box

1× USB DC 5V to DC 12V 5.5×2.1mm Male Converter Adapter Cable

Note: Accessories shown in product images are for illustration purposes only and are not included. Please allow ±1 cm measurement tolerance. Colors may vary slightly depending on monitor settings.

Made in Mainland China.

Frequently Asked Questions

Q: Can I use this USB to 12V converter cable with any USB power bank?

A: Yes — as long as your power bank or USB port outputs a stable 5V at 2A (or more), this cable will step up the voltage to 12V DC for your device. It is ideal for keeping a WiFi router or LED strip running from a portable power bank during outages.

Q: What is the maximum power this 5V to 12V converter can handle?

A: This cable supports a maximum output power of 6W (12V at 0.5A). It is designed for low-draw 12V devices such as LED strips, small routers, and car air purifiers. Do not use it with devices that require more than 6W.

Q: What does the 5.5×2.1mm connector polarity mean?

A: The 5.5×2.1mm DC barrel plug on this cable is center positive (inside pin = positive/+) and outer sleeve negative (−). This is the most common polarity standard for 12V DC devices, but always verify your device's polarity before connecting.

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.