CanaKit 5V 2.5A Raspberry Pi 3 Power Supply / Adapter / Charger (UL Listed)
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Product Specifications
- Tested with all versions of the Raspberry Pi including the Pi 2 and Pi 3
- UL Listed
- 5 Feet cord length
- Micro USB plug
Output 5V DC 2.5A Regulated Input 100V to 240V AC
Product Description
2.5A is now a requirement for the Raspberry Pi 3. The CanaKit 2.5A Raspberry Pi power supply / adapter has been specially designed and tested for the new Raspberry Pi 3 and incorporates an inline noise filter for highest stability and reliable operation.
This power supply differs from typical standard 5V USB power supplies in the market in that it can deliver a full 2.5A and still output a voltage well within the USB minimum voltage specifications. Standard 5V USB power supplies in the market have a high voltage drop when the full current is drawn from them which may cause the Raspberry Pi to reboot unexpectedly.
With this power supply, you can power the Raspberry Pi 3 at full load as well as up to 1.2A across the four USB ports. The power supply still has about 0.5A of output power to spare, so even at the maximum current supported by the Raspberry Pi 3, the power supply is not at its absolute maximum.
It is also ideal for use by anyone over-clocking the Raspberry Pi which causes higher power requirements that a lower power adapter may not be able to supply.
Product Reviews
IV Curve
The attached image shows measured IV curves for this power supply compared to a 2.0A power supply (Kootek). I generated these with a RPi-based IV curve tracer that I built for solar panels (search for “IV Swinger” on YouTube and/or GitHub if you’re interested in knowing more about it). It’s not intended for such small voltages, but it worked pretty well.The IV curves show the current (I) and voltage (V) for different resistances ®. This tells the story about how the supply delivers power for different loads (power = I * V).You can see that both supplies have an open-circuit voltage of 5.3V. That is the lower rightmost point. R = ∞Ω, I = 0A, P = 0W.The upper left points of each curve are the closest to R = 0 (short circuit) that we can measure (R = 0.94Ω due to wiring resistance). You can see that the Kootek delivers just about 3A of current and the Canakit delivers about 3.8A. But at this point both are way below 5V (below 3V, in fact.).An interesting point is where the curves cross their rated current values. The Kootek 2.0A supply crosses 2.0A at about 4.6V (2.0*4.6 = 9.2W). The Canakit 2.5A supply crosses 2.5A at about 4.5V (2.5*4.5 = 11.25W). Both of these are well below 5V. Probably high enough that the RPi won’t crash, but cutting it close.Another interesting point is where the curves cross 5.0V. The Kootek 2.0A supply crosses 5.0V at about 0.8A (0.8*5.0 = 4.0W). The Canakit 2.5A supply crosses 5.0V at about 1.0A (1.0*5.0 = 5.0W).People who are claiming that this supply doesn’t deliver 2.5A are correct - if they are expecting it to deliver 2.5A at 5.0V. But what is important is whether the supply is sufficient for the RPi 3. All I can say for sure is that it does deliver proportionally more power than a 2.0A-rated power supply that has worked fine for me with the Gen 1 RPi B+. For that reason, I’m giving it four stars.For anyone with specific voltage requirements at the rated (or other) current, you can read the values off the IV curve in my attachment.
Works great for Raspberry Pi 3
My 2.1A power supplies were causing the RPi3 undervoltage indicator to show up when doing heavy video decoding(HEVC/x.265). Swapping to this power supply solved the issue. I don’t foresee any need to adapt this to a different USB connector as it’s for my Pi 3 but that would be the only downside on this product if I had to pick one.
Stop Using A Phone Charger Adapter+Cable And Get A Proper Power Supply For Your RPI3
This review is for the CanaKit 5V 2.5A Raspberry Pi 3 Power Supply / Adapter / Charger (UL Listed)It works well for my RPI3 (I’m running RetroPie on it). Earlier, I was using a stopgap “phone charger + micro USB cable” solution, but I’d see the rgb color square in one corner of the screen (indicating inadequate power). That problem is now gone.The plug on this thing fits the micro-USB socket on my RPI3 securely. The power cord could be a bit longer, but I can’t justify deducting a star for that. I have not measured its output to verify whether it actually outputs 2.5A (or whether at precisely 5V), but the RPI3 seems to be happy, so I’m happy.
A solid Raspberry Pi power supply
There is nothing more irritating then chasing down system hangs or minor peripheral performance issues (wifi, camera) only to find out you have inconsistent power. So I’m very picky about my Raspberry Pi power supplies. When my preferred brand disappeared from Amazon (at least it’s current and projected availability) I needed an alternative. After considering a few options, I settled on the CanaKit. I purchased my first of these a couple months ago and have just purchased two more. I find these well built and well performing. I’m interested in seeing how they hold up over time, but have no reason to believe they won’t.
Perfect as made for the Raspberry Pi
Perfect as made for the Raspberry PiI purchased this power adapter for a Pi i bought that did not have a power adapter.I looked at others but went with this one with the proper Voltage and Current 5V 2.5A Plus this has the filter.
Avoid power-related throttling with a good PSU.
Games on my Pi were lagging and I couldn’t understand it - until I noticed that I was running with a 0.5A power supply. I hooked up one of these, and with no software change whatsoever my performance increased dramatically.
Excellent item for the price!
I needed to get myself a power supply for my newly acquired Raspberry Pi 3, and this one did the trick marvelously. Low-cost, but extremely great at doing what it needs to do, I wouldn’t recommend anything else other than this for your Raspberry Pi 3 power supply needs!
It works, and it works well. The only …
It works, and it works well. The only thing I have any complaint about is the absence of any power control. Several Pi power supplies have a power on/off switch (as do several case, which begs the question, which component should really be responsible for this?) and as the case I bought and the power supply I bought have no power controls, it’s cumbersome to turn the Pi off. I’m ended up just leaving it on at all times because the power draw is so small, but it’s worth keeping in mind.
It worked once
I got a few hours out of it, then it barely manages to keep connected. While it worked, it worked well, my raspberry pi 3B stopped showing the lightning bolt indicator, but I’d…
Powers my RPi3 with no issue.
Works perfectly. Just wish the cord was a bit longer.
It works.
It’s a power cord… Not really much to say here.Pros:It worksCons:It doesn’t wash my car.
Great Item!
Great Item!
perfect for raspberry pi 3
perfect for raspberry pi 3, has more than enough amperage, voltage is perfect no lightning bolt to let you know not enough voltage
Great Customer Service
Unfortunately didn’t last a year, but they sent me a free replacement when it died! Functions great, exactly how you would want a 5V/2.5A power supply to work
powering PI 3 for months now
Connects to Pi 3 and has been powering it now for months. can’t complain
Four Stars
decent power cable for my raspberry pi
Five Stars
Solid so far - no complaints.
Has worked well for the better part of 6 months
comments powered by DisqusHas worked well for the better part of 6 months, so far no problems. I use this to power my RPi3 and a string of leds plugged into the USB of the RPi.
