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NorthPada Raspberry Pi 3 Model B B+ A+ Plus Power Supply Charger AC Adapter Cord 5V 3A PSU Micro USB 5 Feet with Power On/Off Switch, with a USB C Adapter for Raspberry Pi 4 Model B, Pi 400
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$10.99
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| Brand | NorthPada |
| Power Source | Corded Electric |
| Input Voltage | 110 Volts (AC) |
| Connector Type | USB, Micro USB |
| Output Voltage | 5 Volts (DC) |
About this item
- Make sure this fits by entering your model number.
- A product of NorthPada; Input: AC 100-240V 0.3A 50/60Hz, Output: DC 5V 3000mA/3A
- Cable Length: 150cm/5Feet with On/Off Power Switch, Inline Noise Filter
- For Raspberry Pi 3 Model B B+ A+, Raspberry Pi 2 Model B, Raspberry Pi A/A+/B/B+, Raspberry Pi Zero, Raspberry Pi Pico, ASUS Tinker Board S
- Come with a micro USB to USB C Adapter, it can also support Raspberry Pi 4 Model B, Raspberry Pi 400
- Package included: 1 x 5V power supply with micro usb, 1 x micro USB to USB C Adapter; Warranty: Money back within 90 Days and Replacement within 2 Years
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Product description
A product of NorthPada; Input: AC 100-240V 0.3A 50/60Hz, Output: DC 5V 3000mA/3A
Cable Length: 150cm/5Feet with On/Off Power Switch, Inline Noise Filter
For Raspberry Pi 3 Model B B+ A+, Raspberry Pi 2 Model B, Raspberry Pi A/A+/B/B+, Raspberry Pi Zero, Raspberry Pi Pico, ASUS Tinker Board S
Come with a micro USB to USB C Adapter, it can also support Raspberry Pi 4 Model B, Raspberry Pi 400
Package included: 1 x 5V power supply with micro usb, 1 x micro USB to USB C Adapter; Warranty: Money back within 90 Days and Replacement within 2 Years
Product information
Size:1 X Pi 3 Power Supply| Product Dimensions | 5.51 x 3.7 x 1.02 inches |
|---|---|
| Item Weight | 4.2 ounces |
| ASIN | B01N336XEU |
| Customer Reviews |
4.7 out of 5 stars |
| Is Discontinued By Manufacturer | No |
| Date First Available | January 13, 2017 |
| Manufacturer | NorthPada |
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And boy, am I glad I did! Ever since connecting this power supply, I have not seen a single undervoltage sign. I played for several hours in one sitting at one time and this power supply kept my Raspberry Pi 3 at full speed. Did I mention I have overclocked my Raspberry Pi 3?
My Retropie setup has a powered fan, USB hub connected with two controllers, wireless keyboard USB dongle all connected at the same time and overclocked to 1300 MHz to boot, and this power supply was able to provide enough juice for everything. It also has a switch for easy power down! I highly recommend this power supply to anyone having a undervoltage problem. In my opinion, it's a must have if you overclock your Raspberry Pi 3.
*** In summary, I popped on here today to warn others that during my tests I was unable to power both a Raspberry Pi 3 B+ and the 7-inch touchscreen without getting the under-voltage warning.
Take note that I'm talking specifically about the >>> Pi 3 B+ <<<, not the Pi 3 or even the Pi 3B. I'm also talking about powering both the touchscreen and the Pi 3 B+ from a single wart. With one wart powering both the measured voltage dropped down to 5.1 volts and I had the low voltage warning on the display. I tested the Pi 3 B+ without the touchscreen connected and there was no warning. The voltage measured 5.22 volts without the screen. I was slightly annoyed that it wouldn't power both, but since I had purchased 2 of these anyway, I plugged 1 into the Pi 3B+ and 1 into the touchscreen. By using 1 wart for each, it ran perfectly with no warning icon. Once I had the screen on a separate wart, I was even able to add a HifiBerry Dac Pro+ to the Pi 3 B+ without getting the warning icon. (I admit I was surprised that 5.1 volts triggers the low voltage warning. Seems odd to me.)
So, from my personal experience with this unit, if you are planning to use the Pi 3 B+ with the official 7" touchscreen, you should buy a 2 pack of these power supplies and expect to use both simultaneously in order to get rid of the low voltage warning. In my own case, I'm still looking for a single power wart that will power both. I'll probably hook it up to my bench power supply to find out exactly what voltage and current the combination needs while under a heavy workload in order to prevent the low voltage warning.
Tip for using two warts at once: Don't connect the power jumper wires or the USB power jumper between the Pi and the screen PCB. Just plug one wart into the micro USB socket on each board individually. I use a power strip to turn both on at once, but powering the screen up before the Pi would also likely work fine. Turning the Pi on first might cause the Pi to not configure the screen properly because it may not see the unpowered screen during boot, although I haven't verified this.
I spent a lot of time making sure the 60 Hz hum wasn't coming from the 3.5 mm cord itself. (The hum is greatly reduced, though not eliminated, if I use the USB power supply that came with my tablet.)
Disappointed with the lack of quality on this power supply and failure to meet its marketing specs.
People said maybe it's the cable's fault. But these are brand new, and I never add anything "additional" to the USB cables, either, they just plug directly into the Pi. People told me maybe it's the power outlet itself, but I've not only tried different outlets, but I've tried different buildings! And the same thing.
People told me maybe my Pi was faulty. But I have had this problem on the Pi 1, 2, 3, and 4! People said maybe I'm drawing too much power from the Pi. What could be drawing too much power? My keyboard? If the Pi can't power a USB keyboard then all Pis must be faulty, not just mine.
I've come to the conclusion the Raspberry Pi Foundation is faulty. 2.5A is just not enough. I finally decided to try a 3.0A supply and guess what? No more undervoltage warnings.
I will recommend 3.0A power supplies to anyone over the "official" one or Canakit's. It just works, finally. And having a button built-in to the cable is very convenient. It will make sure I don't wear out the port from unplugging and plugging it back in over and over again.
I am happy to finally have something that works after putting up with these annoying warnings for years.
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