UCTRONICS DC 9V 12V 24V to DC 5V 5A Buck Converter Module, 9-36V Step Down to USB 5V Transformer Dual Output Voltage Regulator Board [2 Pack]

ラズパイ5の電源用として購入しました。 出力5Aが出るか不安でしたが、起動後もエラー無いので良さそうです。 基盤がむき出しなので気を付けて配線と取り付けしてます。

Great item, it handles varying powers quite well, and is easy to use for many things, as it has screw terminals on both sides and a 12v barrel jack input, and a USB connection that sent the 5v over the power lines. Relatively cheap, but it does not have screw holes, so implementing it may be a bit difficult.

Originally bought these due to the noted 5.2V 5A output capacity which is the ideal rating for a power hungry Raspberry Pi 5. It also helped resolve some power related issues with some equally power hungry 5G M.2 modems that I had been utilizing. I'm very happy with these. Great price and does exactly what it needs to and meets all the ratings it is advertised for. An additional pro-tip: Look up USB-C PD trigger boards or cables. Many all over Amazon. I have my setup fed by a 15V PD trigger board on the input side which allows me to use a more widely available PD power supply/battery bank and supply the necessary wattage. SUPER convenient. I've powered my rig on everything from a Steam Deck charger, power bank, USB-C PD car charger, etc..

Works perfectly to power raspberry pi 4b in car.

I'm running an RPi 4, Waveshare 5" LCD, external SSD, Logitech C920 webcam, 1m or so of LED lights (12V) and 2 small fans off of this for my 3D printer and everything seems to work well so far. Supply power to this is from a 12V 5A wall wart. Ran a short ~1h print, all good. A minor word of warning - the voltage does drop temporarily if you touch the small IC chip on the board while it's running (I did this to check the temperature). I'm guessing the extra capacitance of your finger messes with the PWM signal used in the buck converter. This was the only time I experienced an under-voltage warning from my Pi.