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DFRobot

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A USB to DC boost converter cable that steps up 5 V from a USB power source to either 9 V or 12 V output, selectable via a built-in switch. A digital LED dis...

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A USB to DC boost converter cable that steps up 5 V from a USB power source to either 9 V or 12 V output, selectable via a built-in switch. A digital LED display shows the current output voltage. Simply plug the USB end into a power bank, USB charger, or any 5 V USB source to power 9 V or 12 V devices on the go.

Key Features

  • 5 V to 9 V / 12 V Boost – Selectable output voltage via switch
  • LED Voltage Display – Shows current output voltage
  • USB Input – Compatible with power banks, USB chargers, and USB ports
  • DC Round Head Output – Standard barrel connector for common devices
  • 0.8 m Cable Length – Convenient reach for most setups

Specifications

  • Input Voltage – 5 V (USB)
  • Output Voltage – 9 V or 12 V (switchable)
  • Max Output Current – 1 A at 9 V / 0.8 A at 12 V
  • Cable Length – 0.8 m (31.5″)
  • Output Connector – DC round head

Ideal For

  • Powering routers and optical modems from USB power banks
  • Industrial sensors requiring 9 V or 12 V from portable USB power
  • Field testing and portable setups without mains power
  • Powering 9 V / 12 V devices from USB chargers

Package Contents

  • 1× USB to DC Boost Converter Cable (5 V to 9 V / 12 V)
  • 1× 3.3 × 1.35 mm Adapter

Jargon buster

Plain-language definitions for the technical terms used above.

boost converter
A boost converter is a switching power circuit that raises a lower input voltage to a higher output voltage. It is used when a device needs more voltage than its power source provides, for example running a 5 V sensor from a 3.3 V supply.
DC
DC means direct current, where electricity flows in one constant direction, as supplied by batteries, USB ports and many plug-pack power supplies. When a product specifies DC, it runs from a DC supply rather than mains AC, so you need to provide the correct voltage and polarity.
LED
A light-emitting diode (LED) is a small electronic component that emits light when current flows through it in the correct direction. Because it only conducts one way, its polarity matters, and a through-hole LED must be soldered the correct way around to light up.

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