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Black USB-A to 5.5x2.1mm DC barrel cable with inline boost module, one metre long

SMUGDESK

SMUGDESK 1M USB to 12V DC Boost Cable 5.5x2.1mm

SKU CH-3H5N-ZJT62

Converts 5 V USB power to a stable 12 V output through a built-in step-up module with a 5.5 × 2.1 mm barrel plug and one metre of cable

  • Converts USB 5 V to stable 12 V DC output with built-in step-up module
  • Standard 5.5 mm x 2.1 mm barrel plug fits common low-power 12 V devices
  • 1 metre cable length gives flexible placement for indoor, vehicle or desktop setups
  • Powered from USB chargers, power banks or laptop ports for portable convenience
  • Integrated all-in-one design works straight out of the box with no extra assembly

What this cable powers

This USB-to-DC boost cable converts a standard 5 V USB supply into a stable 12 V output through a 5.5 mm by 2.1 mm barrel plug. It is built for low-power 12 V devices such as small routers, LED strips, cameras or surveillance accessories. The integrated step-up module and one-metre length make it a compact, plug-and-play solution for desktop, vehicle or indoor setups where a mains adapter is inconvenient.

Power limits of the USB source

The cable draws its energy from any USB port, charger or power bank, so the maximum output current is capped by what that source can deliver at 5 V. Because the step-up conversion adds loss, the 12 V side can only support low-power equipment; high-current or heavy-load devices will exceed the available power and must not be connected. Always verify the device’s voltage and current requirements before use.

Installation and common issues

Connection is straightforward: plug the USB end into the power source and the 5.5 mm by 2.1 mm barrel into the device. The most frequent problem is a mismatched barrel size or polarity, so confirm the jack dimensions and centre-positive wiring on the target hardware. Another issue is attempting to run gear that draws more current than the USB supply can provide, which causes voltage drop or shutdown.

Highlights

  • Converts USB 5 V to stable 12 V DC output with built-in step-up module
  • Standard 5.5 mm x 2.1 mm barrel plug fits common low-power 12 V devices
  • 1 metre cable length gives flexible placement for indoor, vehicle or desktop setups
  • Powered from USB chargers, power banks or laptop ports for portable convenience
  • Integrated all-in-one design works straight out of the box with no extra assembly

Specifications

No published specifications for this item yet.

Questions about this item

Should I choose this 1 m cable or a different length for my 12 V device?

This product is offered only in a 1 m length. Pick it when a one-metre reach from the USB source to the 5.5×2.1 mm jack suits your layout.

What does the 5 V to 12 V boost conversion mean for my router or camera in daily use?

The built-in step-up module raises a standard USB 5 V supply to a steady 12 V DC output, letting you run low-power 12 V gear such as routers, cameras or LED strips from a USB charger or power bank.

How does the USB input limit what the 5.5×2.1 mm plug can deliver?

The cable draws 5 V from any USB-A port or power bank; the integrated converter steps that up to 12 V, so maximum output current is constrained by the USB source and conversion efficiency, making it suitable only for low-power devices.

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