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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Description

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

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.

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.

Specifications

ASIN	B087RHWTJW
Best Sellers Rank	#41,129 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #166 in Power Converters
Brand	DROK
Color	Black Mini
Customer Reviews	4.4 4.4 out of 5 stars (795)
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

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DC Buck Converter 4pcs

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