We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
USB cable with inline boost module, black finish

SMUGDESK

SMUGDESK USB 5V to 12V Step-Up Boost Cable

SKU CH-E9TX-5J7CZ

Converts USB 5V power to stable 12V DC for routers, modems, fans and speakers using a power bank

  • Converts USB 5V to stable 12V DC output via built-in boost converter
  • Emergency power for 12V devices using a power bank without wall adapter
  • Compatible with routers, modems, fans, speakers and other 12V small electronics
  • Smart circuit protection against over-current, over-heating and short circuit
  • Compact plug-and-play cable design, easy to carry for outdoor and backup use

Portable 12V boost cable for USB power banks

This compact cable integrates a step-up converter that turns standard USB 5V output into a steady 12V DC supply. It is designed for users who need to run low-power 12V gear such as routers, modems, mini fans or portable speakers from a power bank when mains power is unavailable.

Plug-and-play emergency power for 12V devices

The all-in-one cable requires no drivers or external adapters; simply connect the USB end to any 5V source and the 12V barrel plug to the target device. Built-in over-current, over-temperature and short-circuit protection safeguards connected equipment during outdoor, travel or backup scenarios.

Replaces wall wart for 12V gear under 5V input limit

It upgrades a fixed mains adapter by letting a portable power bank take its place, provided the device draws within the cable's load capability. The jump is worthwhile when you need silent, cable-free backup for networking kit or small electronics, but it cannot step voltage down or support higher-wattage loads.

Highlights

  • Converts USB 5V to stable 12V DC output via built-in boost converter
  • Emergency power for 12V devices using a power bank without wall adapter
  • Compatible with routers, modems, fans, speakers and other 12V small electronics
  • Smart circuit protection against over-current, over-heating and short circuit
  • Compact plug-and-play cable design, easy to carry for outdoor and backup use

Specifications

No published specifications for this item yet.

Questions about this item

How much current can the boost cable deliver continuously before its protection trips?

The integrated circuit limits output to prevent over-current and over-temperature, so sustained draw must stay within the cable's rated load for stable 12V operation.

Does the converter get hot or make noise when powering a router all day from a power bank?

The smart protection monitors temperature and current continuously; under normal load the cable runs silently and stays cool enough to handle.

What USB source do I need to supply the 5V input side of this cable?

Any standard USB-A port or power bank that can provide 5V at sufficient current will work; just plug the USB end into the source and the 12V barrel into your device.

New to this? Which coin should you pay with — what to check, what it costs to pay, and what is never asked for.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.