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A small rectangular circuit board with two USB ports and an 80cm power cable attached

Ruth's sister

Ruth's sister Dual USB QC3.0 12/24V to 5V3A Module DC-DC Step Down internal power cable

SKU CH-EE0X-3DGJ6

Converts 12/24 V vehicle power to dual USB QC3.0 ports delivering 5 V 3 A for phones and tablets

  • Fast charging with QC3.0 support for compatible devices
  • Wide input range from 10 to 30 volts suits 12 and 24 volt systems
  • Multiple safety protections include over-voltage and short-circuit safeguards
  • Ready-to-use 80 centimetre cable length simplifies DIY installation
  • Three output profiles deliver 5V 3A, 9V 2A or 12V 1.5A

Dual USB QC3.0 step-down module

This module converts a 12/24 V DC source into two USB ports that deliver 5 V 3 A, 9 V 2 A or 12 V 1.5 A. It targets DIY builders who need to add fast charging to a vehicle, recorder or home power project. The unit accepts an input range of 10 V to 30 V and includes protection against over-voltage, under-voltage, over-current, short circuit and over-temperature.

Build integration and freedoms

The 80 cm cable lets you route the module behind panels or inside consoles without extending the harness. Because it steps down directly from the vehicle or project supply, no separate AC adapter or bulky inverter is required. Two ports free up the need for multiple single-port chargers in a tight enclosure.

Sustained load behaviour

Protection circuits monitor input and output continuously, shutting down if current or temperature exceed safe limits. This prevents damage during long charging sessions or when the supply voltage drifts near the 32 V ceiling. The module maintains regulated output as long as the source stays within the 10 V to 30 V window.

Highlights

  • Fast charging with QC3.0 support for compatible devices
  • Wide input range from 10 to 30 volts suits 12 and 24 volt systems
  • Multiple safety protections include over-voltage and short-circuit safeguards
  • Ready-to-use 80 centimetre cable length simplifies DIY installation
  • Three output profiles deliver 5V 3A, 9V 2A or 12V 1.5A

Specifications

No published specifications for this item yet.

Questions about this item

What is the maximum input voltage before the module shuts down?

The input voltage must not exceed 32 V; the module accepts 10 V to 30 V continuous input.

How much heat does the module produce during continuous charging?

The module includes over-temperature protection that shuts it down if heat builds up during sustained use.

Which cables are required to get QC3.0 fast charging speeds?

You must use the original charging cable or a certified fast-charging cable; standard cables will only deliver 5 V.

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