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

4.7 4.7 out of 5 stars 4,721 ratings
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About this item

  • Compatible only with the Raspberry Pi 2, Pi 3 and Pi 3 B+. NOT Compatible with Raspberry Pi 4 or Pi 5
  • UL Listed
  • 5-feet cable with integrated noise filter
  • Micro USB plug
  • Output: 5V DC / 2.5A Regulated Input: 100 - 240VAC

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CanaKit 5V 2.5A Raspberry Pi 3 B+ Power Supply/Adapter (UL Listed)
CanaKit 5V 2.5A Raspberry Pi 3 B+ Power Supply/Adapter (UL Listed)
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Price$9.95$8.99$8.99$19.99$12.00$10.99
Delivery
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Customer Ratings
Quality of material
4.5
4.6
4.8
3.1
Value for money
4.4
4.6
4.8
3.6
Sold By
CanaKit
iUniker Pi
ezfit
O.T. US
ArgonForty SHOP
GeeekPi
connector type
usb, micro usb
micro usb
Micro USB
USB
Micro USB
USB
number of usb ports
1
1
1
1
1
1
input voltage
240 volts
240 volts
240 volts
240 volts
240 volts
240 volts
connector gender
Male-to-Male
Male-to-Male
Male-to-Male
Male-to-Male
Male-to-Male
Male-to-Male
power source
Corded Electric
AC
Corded Electric
specification met
UL
UL
TUV, RoHS
output voltage
5 volts
5 volts
5 volts
5.1 volts
5.25 volts
5 volts
cable length
5.0 feet feet
150 centimeters centimeters
100 centimeters centimeters
120 centimeters centimeters
current rating
0.5 amps, 2.5 amps
3 amps
3 amps
0.5 amps, 2.5 amps
3 amps
3.6 amps

From the manufacturer

CanaKit 5V 2.5A Raspberry Pi 3 Power Supply / Adapter / Charger

The CanaKit 2.5A Raspberry Pi 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. This adapter has been incorporated as an inline noise filter for highest stability and reliable operation.

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 it's 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. 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.

  • This adapter has been specially designed and tested for the new Raspberry Pi 3.

Product information

Technical Details

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Additional Information

Warranty & Support

Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.
Product Warranty: For warranty information about this product, please click here

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


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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.

Customer reviews

4.7 out of 5 stars
4.7 out of 5
4,721 global ratings

Customers say

Customers like the charging adapter for its performance, value, and quality. They mention that it works great, is well built, and is dependable. Some are happy with the power supply, and fit. Others however, have issues with the low voltage warning and are mixed on cord length.

AI-generated from the text of customer reviews

609 customers mention573 positive36 negative

Customers are satisfied with the performance of the charging adapter. They mention that it works great, it works just fine to power their Pis, and that they're happy with all the components.

"...Not much to say other than they work perfectly, exactly what I was looking for, no complaints what so ever." Read more

"Works great! Got rid of the "undervoltage detected" warning I was getting with a standard phone charger and micro-usb cable...." Read more

"...It's not intended for such small voltages, but it worked pretty well...." Read more

"Works great with my Pi 3 B, running pretty intense processes. No issues." Read more

278 customers mention229 positive49 negative

Customers like the power supply. They say it's great, delivers the correct power, and is more than adequate for the Raspberry Pi. Customers also appreciate the clean power, with no brown outs or low power warnings. They're able to power their Raspberry Pi system, USB Wi-Fi adapter, USB keyboard, and any other USB device.

"Good value and more than adequate power supply for the Raspberry Pi. Can never go wrong with CanaKit products." Read more

"...I am now able to power my Raspberry Pi system, USB Wi-Fi adapter, USB Keyboard, and any additional items without any issues with the system freezing/..." Read more

"Works great! No more insufficient voltage for me!" Read more

"...to get the official Canakit adapter and lo and behold, no more low power warning! Winning!" Read more

128 customers mention101 positive27 negative

Customers like the quality of the charging adapter. They mention that it's well built, has good quality components, and a solid power supply. Some say that the build is average, but the adapter has a bit of heft to it and should last for a very long time.

"...than they work perfectly, exactly what I was looking for, no complaints what so ever." Read more

"...The build quality of the power supply is impressive, with sturdy construction and a sleek design that looks great alongside my other tech equipment...." Read more

"...This psu should last for a very long time. Feels much better then the NorthPada." Read more

"...It seems to be made well. The cord is a little thin, but is reinforced where it goes into the outlet plug...." Read more

96 customers mention77 positive19 negative

Customers like the value of the charging adapter. They say it's well worth the investment, a good purchase overall, and worth every penny to have reliability.

"Good value and more than adequate power supply for the Raspberry Pi. Can never go wrong with CanaKit products." Read more

"...market, the quality and reliability of this product make it well worth the investment...." Read more

"...Regardless, it’s well-worth the $10 to not get slowdown anymore." Read more

"Good price" Read more

31 customers mention23 positive8 negative

Customers like the fit of the charging adapter. They say it fits snugly and is compact. Some mention that it takes up minimal space on a power strip.

"...Right dimension for my socket outlet bar and cable is long enough and from a decent wire gauge and with a HF filter, can not go wrong for this price..." Read more

"...It fits OK right now, but I can't plug it in 100% of the way when other items are plugged in next to it...." Read more

"...It's not intended for such small voltages, but it worked pretty well...." Read more

"...You're LITERALLY playing with FIRE.It also takes up minimal space on a power strip. See photo...." Read more

26 customers mention24 positive2 negative

Customers are satisfied with the charging adapter. They mention it's a great charger for Raspberry Pi, and good to power wireless phone chargers with a micro-usb input. Some say that it'll charge their phone well. Overall, most are happy with their purchase and recommend it to others.

"These are good to power wireless phone chargers with a micro-usb input...." Read more

"...See photo.This is also great for phone charging; 2.5A current insures faster charging, where possible." Read more

"...It's a great charger, 100% recommended." Read more

"The charger part of this item is excellent, but the micro usb male connector is junk...." Read more

31 customers mention15 positive16 negative

Customers are mixed about the cord length. Some like that the cord is pretty long, while others say that it's a bit shorter. They also mention that the wires are very stiff and that the cable feels cheap. That said, opinions are mixed, with some customers happy with the length and thickness, while other complain about the shortness and the brick-type connector at the end.

"...Build is of average (acceptable) quality, the cable is long enough and it plugs in securely to the Raspberry Pi." Read more

"...Cons:The wire is thin, stiff, and cheap.Raspberry Pi power requirements:..." Read more

"...Right dimension for my socket outlet bar and cable is long enough and from a decent wire gauge and with a HF filter, can not go wrong for this price..." Read more

"...The power cord could be a bit longer, but I can't justify deducting a star for that...." Read more

44 customers mention8 positive36 negative

Customers are dissatisfied with the low voltage warning of the charging adapter. They mention that it shows frequent warnings of under-voltage, and the Raspberry Pi is throwing low voltage error messages. Some customers also report that the adapter drops in voltage.

"...yet I still see undervoltage errors and unexplained ruined print jobs that don't recur when the job is..." Read more

"...december it was mostly ok and now the Pi is throwing low voltage error messages." Read more

"...I am getting an undervoltage warning with this power supply for a Raspberry Pi 3b...." Read more

"...After only 2 months the Pi is showing the low voltage warning.Edit-..." Read more

IV Curve
4 Stars
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 (R). 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.
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Top reviews from the United States

Reviewed in the United States on January 27, 2024
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Customer image
4.0 out of 5 stars IV Curve
Reviewed in the United States on April 4, 2016
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 (R). 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.
Images in this review
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Client d'Amazon
5.0 out of 5 stars Conforme
Reviewed in Canada on December 6, 2021
Cliente de Amazon
5.0 out of 5 stars Hasta ahora no he tenido inconvenientes
Reviewed in Mexico on July 28, 2018
Cliente de Amazon
5.0 out of 5 stars Todo bien.
Reviewed in Mexico on April 22, 2018
Amazon Customer
3.0 out of 5 stars Three Stars
Reviewed in Canada on March 20, 2018
Toshiro Komiyama
4.0 out of 5 stars Todo bien
Reviewed in Mexico on November 9, 2018