could this be used to power a raspberry pi? wondering if it will be able to output the 5.1v at 3 amps constantly

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.

Do you have a suggested way to mount these usb boards? Is there an adapter housing?

I used Hammond 1551USB2BK housing and mounted using epoxy.

Does this have low voltage protection that automatically shuts off when voltage drops below 12 volts? If so, can you turn it off?

The input range is 6-32V. I operate mine at 6-8V typically. You don’t have to do anything special for this.

do they auto cut off when battery is charged?

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.

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DROK USB Buck Converter, 4pcs DC-DC Step Down Module, 6-32V to 5V, QC 3.0 Charging, Power Supply Voltage Regulator, Black

DROK USB Buck Converter, 4pcs DC-DC Step Down Module, 6-32V to 5V, QC 3.0 Charging, Power Supply Voltage Regulator, Black

Product ID: 280334712

Details

Brand
DROK
Colour
Black
Input voltage
32 Volts
Item weight
1.23 Ounces
Output voltage
5 Volts

⚡6-32V wide input range

🔋24W max output power

🛡️6-layer multi-protection

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171 zł

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Sold byAmazon PolandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Power up your projects with precision and speed!

ROBUST SAFETY SUITE - Built-in over-voltage, under-voltage, over-current, short-circuit, and over-temperature protections keep your devices and projects safe.
FAST CHARGING COMPATIBILITY - Supports QC 3.0, Apple, Samsung AFC, Huawei FCP, and more—ensuring your devices charge at lightning speed every time.
COMPACT READY FOR MULTI USE - Slim 35x17x8.5mm modules come in a convenient 4-pack, ideal for upgrading car chargers, solar setups, or household power projects.
UNIVERSAL VOLTAGE FLEXIBILITY - Seamlessly converts 6-32V DC input to stable 5V output, perfect for diverse power sources from solar panels to car batteries.
HIGH EFFICIENCY POWER CONVERSION - Achieves up to 97% efficiency, minimizing energy loss and maximizing performance for professional-grade DIY setups.

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 multiple fast charging protocols including QC 3.0 and Apple AFC, and features comprehensive multi-layer protections for safe, reliable operation. Perfect for DIY enthusiasts and professionals upgrading car chargers, solar power systems, or household electronics, this 4-pack offers versatile, efficient power regulation in a sleek black design.

Specifications

ASIN	B087RHWTJW
Best Sellers Rank	#146,351 in Electronics ( See Top 100 in Electronics ) #5,728 in Electrical Power Accessories
Brand	DROK
Color	Black
Customer Reviews	4.4 4.4 out of 5 stars (291)
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 Type	Type A
Power Source	Corded Electric

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