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Two small green circuit boards each with dual USB-A ports and screw terminals

KEHIPI

KEHIPI Dual USB Buck Converter 2pcs 10-32V to 3-12V 2.5A 30W QC 3.0

SKU CH-T7HJ-7AYKD

Dual USB buck converter steps 10-32 V input to 3-12 V output with QC 3.0 fast charging at 2.5 A per port

  • Adjustable 3–12 V output after quick-charge trigger
  • Dual USB ports each deliver up to 2.5 A
  • 30 W per port for fast charging
  • Over-voltage protection caps output at 13 V
  • Input fuse protects against supply faults

Dual USB buck converter for 10–32 V sources

This module steps a DC input between 10 V and 32 V down to a default 5 V output. When a connected device triggers a quick-charge handshake the output automatically adjusts within a 3 V to 12 V range. Each of the two USB ports is rated for 2.5 A and 30 W. The pack contains two identical boards.

Sustained-load behaviour with fuse-protected input

The input side includes a fuse that protects the converter during prolonged operation. Output over-voltage protection caps the voltage at 13 V even if the control chip fails. Rated current of 2.5 A per port is available only when the attached device requests it; actual draw falls as the battery approaches full charge.

Thermals noise and power draw in normal use

No active cooling is fitted so heat dissipation relies on the board layout and ambient airflow. The converter operates silently because there are no moving parts. Power drawn from the source scales with the combined load on both USB ports and the conversion efficiency at the selected output voltage.

Highlights

  • Adjustable 3–12 V output after quick-charge trigger
  • Dual USB ports each deliver up to 2.5 A
  • 30 W per port for fast charging
  • Over-voltage protection caps output at 13 V
  • Input fuse protects against supply faults

Specifications

BrandDROK
Part NumberFBA200407_2x

Questions about this item

How much heat does the dual USB buck converter produce when running at 30W continuously?

The module includes output over-voltage protection capped at 13V and an input fuse, which limits excess power dissipation during sustained 30W operation.

What input power source is required for the 10-32V buck converter to function?

A DC supply between 10V and 32V — such as a 12V or 24V battery or regulated adapter — must be connected to the input terminals.

Will the QC 3.0 module charge a legacy 5V-only phone safely alongside a newer quick-charge device?

Yes, each port defaults to 5V and only shifts to 3-12V after detecting a compatible QC 2.0, QC 3.0, AFC, FCP, SFCP or MTK PE handshake.

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