CanaKit 5V 2.5A Raspberry Pi 3 B+ Power Supply/Adapter (UL Listed)

Outstanding build quality and price.

Consistent power supply that works. Not expensive. Does the job well.

Fast delivery and works just fine. Would recommend!

Note: if laying the board on a desk, the circuit board should be at the top (where you can see the LED flash from time to time). There's a brief manual at the manufacturers (Nova) site.The recent smoke events in the NE US got me researching air quality sensors. My research lead me to learning about sensor components and then on to researching if I could use a sensor with a Raspberry Pi. I own a Raspberry Pi 3 which has been "resting" in a drawer for a few years... More research and I learned how I could use the Pi with this sensor. So, I ordered the sensor.I followed the directions I found and was able to get the system to work. I wasn't sure it was accurate, so last evening, as the AQI was rising, I put it all on my front porch and the initial reading just so happened to match the EPA sensor a few miles away. Good sign. The readings bounced around a bit, as I would expect and I brought it back inside.My purpose is to measure my inside air especially during outside smoke "events" to know what is happening and to measure if countermeasures (air cleaners, their location, etc) are working.As a test, I did run my vacuum cleaner near the sensor and it detected an increase in PM10. The increase in PM2.5 could have been a "rounding error."Finally, a comment about accuracy in more humid environments. As humidity increases, the amount of dust that can be suspended in air increases. Turn on the A/C, the dust in the air decreases because there's less water molecules in the air to support that dust. That this device is detecting less dust in the air after the A/C is turned on is a sign that this device is working.

As much as I'm not a fan of micro usb, that's what I'm stuck with on the pi 3 so this does what I need to without worrying about it being on all the time. The wall wart/AC side is a little awkward to position in my setup though partly because the size and partly because it's stuck going out from one side or the other rather than straight out but that's just preference for my setup of course some people will prefer it this way.

You want to make sure you have the correct power supply for your Raspberry Pi or you could brick it. This works on the Pi 3 B+ for sure, and CanaKit is an official Raspberry vendor.

I like that it's UL Listed (who wants to risk setting their house on fire).It comes form CanaKit so you know it's a legit Raspberry Pi outfit.

This power supply is good for the Pi Zero through the Pi 3B computers. Be aware that it does not provide enough power to run the Pi 4 or 5 as it only puts out 2.5 amps. The bigger Pi models take 3 or more amps to run properly.