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Black USB-to-barrel step-up cable, 3 ft, dual 5.5 mm tips

SMUGDESK

SMUGDESK USB 5V to 12V Step-Up Cable 3ft 5.5x2.1mm & 5.5x2.5mm power adapter

SKU CH-AZYV-8RGBV

Converts USB 5V power to stable 12V DC for low-power devices using a compact 3ft cable with dual 5.5x2.1mm and 5.5x2.5mm plugs

  • Powers 12 V devices from any USB port
  • Dual 5.5 × 2.1 mm and 5.5 × 2.5 mm tips fit more gear
  • Integrated boost circuit removes the need for a bulky adapter
  • Three-foot cable gives flexible placement for routers, cameras or LED strips
  • Plug-and-play design works instantly with power banks or laptop USB ports

USB 5V to 12V step-up cable

This SMUGDESK cable converts a standard USB 5V source into a stable 12V DC output for small low-power devices. It includes dual compatible DC barrel plugs measuring 5.5x2.1mm and 5.5x2.5mm. The integrated boost module sits inside the 3ft cord, removing the need for a separate bulky adapter. It draws power from laptop ports, power banks or USB chargers.

Sustained load behaviour

The built-in boost conversion module delivers efficient voltage regulation for continuous operation within its rated current limit. It is designed for equipment such as routers, LED light strips and surveillance cameras that draw modest, steady power. Exceeding the maximum load current risks module burnout and unstable output. The cable is not suited for high-power appliances or devices with large inrush currents.

Replaces separate boost modules

This all-in-one cable replaces an external step-up board plus a USB cable and barrel plug, saving space and reducing connection points. The jump is worthwhile when you need a portable, plug-and-play solution for 12V gear rated within the cable's load capacity. Builders who need more current or voltage adjustability should look at adjustable bench supplies instead.

Highlights

  • Powers 12 V devices from any USB port
  • Dual 5.5 × 2.1 mm and 5.5 × 2.5 mm tips fit more gear
  • Integrated boost circuit removes the need for a bulky adapter
  • Three-foot cable gives flexible placement for routers, cameras or LED strips
  • Plug-and-play design works instantly with power banks or laptop USB ports

Specifications

No published specifications for this item yet.

Questions about this item

Does the integrated boost module generate noticeable heat when powering a 12V device all day from a USB port?

The compact boost circuit is designed for low-power equipment and runs cool under normal rated load, so it will not become hot during continuous daily use.

Which USB power sources can I use with this step-up cable to run a 12V router?

Any standard USB port supplying 5V — laptop, power bank, wall charger or hub — will work, provided the source can deliver enough current for your device.

Will the dual 5.5 mm barrel plug fit the 5.5x2.1 mm jack on my older surveillance camera?

Yes, the cable includes both 5.5x2.1 mm and 5.5x2.5 mm tips, so it connects directly to either jack size on legacy 12V gear.

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