---
product_id: 216314711
title: "USB Buck Converter, 4pcs DC-DC Step Down Module 6-32V 12V 24V to 5V QC 3.0 Charging Module Power Supply Voltage Regulator Volt Transformer Board"
brand: "drok"
price: "€ 28.52"
currency: EUR
in_stock: true
reviews_count: 8
category: "Drok"
url: https://www.desertcart.at/products/216314711-usb-buck-converter-4pcs-dc-dc-step-down-module-6
store_origin: AT
region: Austria
---

# 6-32V wide input range 24W max output power Multi-layer protection system USB Buck Converter, 4pcs DC-DC Step Down Module 6-32V 12V 24V to 5V QC 3.0 Charging Module Power Supply Voltage Regulator Volt Transformer Board

**Brand:** drok
**Price:** € 28.52
**Availability:** ✅ In Stock

## Summary

> 🔌 Power your projects with precision and speed — don’t get left behind!

## Quick Answers

- **What is this?** USB Buck Converter, 4pcs DC-DC Step Down Module 6-32V 12V 24V to 5V QC 3.0 Charging Module Power Supply Voltage Regulator Volt Transformer Board by drok
- **How much does it cost?** € 28.52 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/216314711-usb-buck-converter-4pcs-dc-dc-step-down-module-6)

## Best For

- drok enthusiasts

## Why This Product

- Trusted drok brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Robust Safety Suite:** Built-in over-voltage, under-voltage, over-current, short-circuit, and over-temperature protections ensure your devices and projects stay safe and reliable.
- • **Fast & Smart Charging:** Supports QC 3.0 and multiple quick charge protocols, delivering optimized voltage (3-12V) for rapid device charging without compromise.
- • **Clear Operational Feedback:** Integrated LED indicator provides real-time status updates, so you’re always in control and informed.
- • **Compact & Consistent Design:** Miniature form factor with precise size consistency, ideal for tight enclosures and professional-grade DIY electronics integration.
- • **Universal Voltage Compatibility:** Seamlessly converts 6-32V DC inputs to stable 5V outputs, perfect for diverse power sources from solar panels to car batteries.

## Overview

The DROK USB Buck Converter is a compact, high-efficiency DC-DC step-down module that converts a wide input voltage range (6-32V) to a stable 5V output with up to 24W power. It supports advanced quick charge protocols including QC 3.0, ensuring fast and adaptive charging. Designed with comprehensive multi-layer protections and a clear LED status indicator, it’s perfect for professional DIY projects, automotive power systems, and solar-powered devices requiring reliable voltage regulation.

## Description

Buy DROK USB Buck Converter, 4pcs DC-DC Step Down Module 6-32V 12V 24V to 5V QC 3.0 Charging Module Power Supply Voltage Regulator Volt Transformer Board: Power Converters - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Great for running a Raspberry Pi from battery - I used this to run a Raspberry Pi 4B and a 5V DC fan off of a 12.8V LiFePO4 battery. The Raspberry Pi was connected to the USB output while the fan was connected to the screw terminals. I had no issues with voltage or current whatsoever.
Review: Great for integrated solutions - Great little modules we use within our line of products to run a microcontroller off of 12v. Very low RF noise compared to other buck converters we have tested and stable voltage. We can't really speak as to how they work under high load, as we only draw about 20mA from them, but we load test each one at 2 amps for 30 seconds and I don't believe we've ever had a dud out of 100+. At the power levels we draw heat is not an issue at all but it would be important to test this for high draw applications. We typically see a power conversion efficiency of about 85% from 12v to 5v@2A when load testing. Module size is always extremely consistent, which is important as we insert them into an enclosure with extremely tight tolerances. We chose this module for our product because of the consistent specifications, low cost, and low noise which is important as our microcontroller generates audio for a radio.

## Features

- PARAMETER --- input voltage range DC 6V-32V; output voltage default DC 5V, after triggering quick charging, it will be automatically adjusted at 3-12V; output power 24W max.
- APPLICATION --- solar panel to mobile phone charging diy; car charging system diy; driving recorder power supply diy; household power supply diy, etc.
- PROTECTION --- input over-voltage protection, input under-voltage protection; input over-current protection; output over-current protection; output short-circuit protection; over-temperature protection.
- QUICK CHARGE --- BC 1.2; QC 2.0/3.0; MTK PE 1.1/PE 2.0; SFCP.
- LED INDICATOR --- indicates the working status.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B087RHWTJW |
| Best Sellers Rank | #39,997 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #151 in Power Converters |
| Brand | DROK |
| Color | Black Mini |
| Customer Reviews | 4.4 out of 5 stars 790 Reviews |
| Input Voltage | 32 Volts |
| Item Weight | 1.23 Ounces |
| Manufacturer | DROK |
| Mfr Part Number | 200405CA |
| Model Number | 200405CA |
| Number of Outlets | 1 |
| Output Voltage | 5 Volts |
| Plug Format | Type A |
| Plug Type | Type A |

## Product Details

- **Brand:** DROK
- **Color:** Black Mini
- **Item Weight:** 1.23 Ounces
- **Input Voltage:** 32 Volts
- **Output Voltage:** 5 Volts

## Images

![USB Buck Converter, 4pcs DC-DC Step Down Module 6-32V 12V 24V to 5V QC 3.0 Charging Module Power Supply Voltage Regulator Volt Transformer Board - Image 1](https://m.media-amazon.com/images/I/71nkb5ksmYL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: could this be used to power a raspberry pi? wondering if it will be able to output the 5.1v at 3 amps constantly**
A: I use them to power Pi 3b+ and Pi4.  No problems at all.  The Pi's are used in radio applications which use 18.8V power.  More convenient to power off the 13.8v power rails.  I also use it to power a Pi3B+ used in Octoprint for my Ender 3 printer.  24v power taken from the Ender 3 power supply through the buck to power the Pi.

**Q: Do you have a suggested way to mount these usb boards? Is there an adapter housing?**
A: I used Hammond 1551USB2BK housing and mounted using epoxy.

**Q: Does this have low voltage protection that automatically shuts off when voltage drops below 12 volts? If so, can you turn it off?**
A: The input range is 6-32V. I operate mine at 6-8V typically. You don’t have to do anything special for this.

**Q: do they auto cut off when battery is charged?**
A: No.  As long as there is power to the converter it will supply power at the USB port.  The device being charged should have its own battery management system to cut off power when appropriate.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great for running a Raspberry Pi from battery
*by C***R on November 24, 2025*

I used this to run a Raspberry Pi 4B and a 5V DC fan off of a 12.8V LiFePO4 battery. The Raspberry Pi was connected to the USB output while the fan was connected to the screw terminals. I had no issues with voltage or current whatsoever.

### ⭐⭐⭐⭐⭐ Great for integrated solutions
*by R***C on August 25, 2025*

Great little modules we use within our line of products to run a microcontroller off of 12v. Very low RF noise compared to other buck converters we have tested and stable voltage. We can't really speak as to how they work under high load, as we only draw about 20mA from them, but we load test each one at 2 amps for 30 seconds and I don't believe we've ever had a dud out of 100+. At the power levels we draw heat is not an issue at all but it would be important to test this for high draw applications. We typically see a power conversion efficiency of about 85% from 12v to 5v@2A when load testing. Module size is always extremely consistent, which is important as we insert them into an enclosure with extremely tight tolerances. We chose this module for our product because of the consistent specifications, low cost, and low noise which is important as our microcontroller generates audio for a radio.

### ⭐⭐⭐⭐⭐ It Works GREAT With a Battery Made of 2, 3.65v LiFEPO4 Prismatic Cells
*by C***O on August 12, 2022*

Almost 1 & 1/2 years ago, I ordered a 10 pack of 3.2v, 50ah, Prismatic Lifepo4 cells from an online vendor. With 8 of those cells I built a 100 amp hour LiFEPO4 battery. But I had 2, 3.2v, 50ah cells remaining that I did not know what to do with. I started wondering if there was a USB module that would accept an input of a minimum of 6 volts to which I could connect the battery to charge and power USB devices. Then I discovered the DROK USB DC-DC Step Down Buck Converter capable of taking 6 volts minimum and converting it to a 5V QC 3.0 Charging Module. I read the reviews, good and bad...bad to see what people were complaining about, and decided to buy a set of 4. I figured that the converter module should work as a USB charging device when connected to the 2 remaining LiFEPO4 cells if the cells are wired in series to produce the required 6+ volts. (See the first picture of the 2 LiFEPO4 cells connected in series with one of the 2 connections coming from the converter module connected.) The second photo shows both wires connected, and the blue illuminated LED on the converter module. You can see "78% 10 m until full" on the screen of my phone. The third photo shows the charging symbol on the screen. It shows 79%. Sorry for the fuzziness of that picture. I used a few of the converter modules to charge my phone and tablet for quite a while over the last few days. I wanted to see how warm they would get. The converter module does get warm, but not too hot to handle...unlike another similar product that got far too hot to be safe. And that was only at about 1 amp of current output. I'll be submitting a brutally honest review on that one soon. I foresee finding an appropriate container in which I will cut holes for the 4 converter modules and the the 50 amp hour battery and use the power source for a portable mega-USB charging station. I'll upload pictures when I get around to making it. I am very happy that my idea panned out!

## Frequently Bought Together

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*Product available on Desertcart Austria*
*Store origin: AT*
*Last updated: 2026-04-23*