DC 12V 24V to 5V 5A 25W USB-C Step Down Converter Buck Power Adapter for Raspberry Pi 4, Cellphone, and More (2-Pack)

This is a handy little step-down converter. The case is sealed for good weather protection but does have a possible leak point where the wires enter the case. The construction is very good with a sealed case and decent length in/out wires. The output is a USB-C plug often used to power Raspberry PIs and this is a perfect power supply for them. It can take an input of 8-32VDC and put out a stable 5V @ 5A. More than enough current for the RPi5. It can be used to power anything that needs 5 volts. If your equipment doesn't have a USB-C jack either use an adapter or cut the end off and hardwire it. Installation is easy. Connect the input and output wires and secure it in place with the tabs on either side of the case. It just simply works and keeps working.

For anyone tinkering with electronics or managing a ham radio station, finding a power adapter that fits the bill without taking up too much room is key. I have picked up a couple of these step-down converters to complement my existing power supplies, and they fit right in. The functionality is solid; taking a 12V or 24V input and dropping it cleanly to 5V works exactly as expected for my USB-C devices. What I really value is the compact size. They do not clutter the workbench, which is important when I'm running multiple adapters off a single source. Installation is plug-and-play, making it easy to throw one together for a quick power test. Regarding connectivity, the USB-C output is stable, and I've found the compatibility to be excellent with my phone, tablet, and Raspberry Pi 4. Efficiency is a big plus for me, especially when I'm trying to maximize how long a battery pack lasts while driving smaller loads. If you need a dependable source for your gear, keeping one of these on hand is a smart move. They aren't magic, just solid electronics doing what they are built for.

I used this to build a simple car power setup for a Raspberry Pi 5, and it worked exactly the way it should. Input is straightforward 12V from the vehicle, and it steps down cleanly to 5V over USB-C. No weird negotiation issues, no undervoltage warnings from the Pi, and no random reboots. The Pi 5 is pickier about power than older models, and this converter handled it without drama—even during boot when current draw spikes. The unit itself is compact and easy to tuck behind a dash panel. Wiring was simple: positive and negative in, USB-C out. I checked output with a meter before connecting it to the Pi and it was right where it should be. It doesn’t run excessively hot either, even after extended use. The rated 5A / 25W output seems realistic based on my use. I’ve had cheap buck converters in the past that technically “work,” but sag under load or introduce noise. This one has been stable so far. No display flicker, no USB disconnects, no instability under moderate load. Build quality is about what you’d expect at this price point—nothing fancy, but solid enough. The protection features (reverse polarity, overcurrent, short circuit, etc.) are reassuring for automotive use, where voltage spikes are a thing. For under ten bucks, it’s a straightforward, functional solution if you need to power a Pi or other 5V USB-C device from a 12V or 24V system. Five stars. It does the job without complications, which is exactly what I want from a power converter.

This works well powering a Pi 4 with no under-volting issues or supply interruptions running nonstop for over a month. It is nicely sealed in its case and the USB C is a nice addition instead of stripped wires making installation a bit easier. It is about the same size as most 24v/5v converters, and the wires are also of similar length. Overall, this is a good almost turnkey step down solution to power a pi, so I would say it is a good value at 10 bucks.

This step down converter is very handy for small electronics prototyping and testing. The exposed 12v/24v wire connectors make it easy to clamp to a 12v battery, and the choice of USB-C for the 5v end is great since that's quickly become the universal standard. The unit has not gotten hot in my limited testing, though I have not used it to step down power for longer than 3 hours at a time. Thus far, longevity is looking good. While I've been using this in a test-bench capacity, it has slots on the sides to accomodate screws to be mounted in/on something a little more permanently. The cables on each end feel pretty securely anchored to the step down box. I wouldn't hang devices off of the cables, but the USB-C end should be durable enough to be regularly plugged/unplugged into devices like a regular charger without coming loose. Overall, this seems like a really solid option for taking advantage of the power capacity you can typically get with a larger 12v or 24v battery and utilizing it with lower power draw devices.

If you are looking to power a Raspberry Pi 4 or other USB-C devices directly from a 12V or 24V battery system (like in a car, RV, or solar setup), this 5V 5A Buck Converter is exactly what you need. It provides a clean, stable power supply that avoids the dreaded "under-voltage" warnings. Why This Converter Is Excellent: High Amperage Output: With a 5A (25W) capacity, it handles the power-hungry Raspberry Pi 4 with ease, even when you have multiple peripherals or SSDs attached. Efficient Step-Down: The conversion from 12V/24V to 5V is highly efficient, meaning it doesn't get excessively hot during operation. The synchronous rectification technology really helps with heat management. Rugged & Compact: The housing is sturdy and the small footprint makes it easy to tuck away inside a project box or behind a dashboard. Stable USB-C Connection: The built-in USB-C cable is convenient and provides a much more secure connection than using a separate adapter or "Frankensteining" wires together.

Stopped working.....putting out 5v but no amps, wont power my dji action 5 anymore....not impressed..

This is a small buck converter for dropping 12v/24v to 5v and it has an attached USB-C connector. I put mine on my bench power supply and the output is 5.26v on mine. Normally, I expect these type buck converts to be closer to 5v exactly, but you shouldn’t harm any 5v device with 5.26v. My unit supplied 5.26v all the way down to ~8v on the input. Since the inside electronics of the device are “potted” I can’t tell anything more about what is inside or if I think they can truly output 5A as claimed. It should operate a Raspberry Pi just fine. My typical Pi devices use much less than 5A on average.