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justPi power supply microUSB 5,1V / 3A for Raspberry Pi 3B+/3B/2B/Zero

Index: ZAS-09707 EAN: 5903351242516
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Power supply with a 1.2 m cable terminated with a microUSB plug. The parameters of the power supply ensure optimal power supply to the Raspberry Pi mini-computer. The output voltage is 5.1 V and the current capacity is 3 A. It allows to power the Raspberry Pi 3B+, 3B, 2B and Zero.

justPi power supply microUSB 5,1V / 3A for Raspberry Pi 3B+/3B/2B/Zero
€8.50 -37%
€5.36
€4.50 tax excl.
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Manufacturer: justPi
Compatibility: Raspberry Pi

Description: justPi microUSB 5,1V / 3A power supply for Raspberry Pi 3B+/3A+/3B/2B/Zero

Power supply with a 1.2 m cable terminated with a microUSB plug. The parameters of the power supply ensure optimal power supply to the Raspberry Pi mini-computer. The output voltage is 5.1 V and the current capacity is 3 A. It allows to power theRaspberry Pi 3B+, 3B, 2B and Zero minicomputer. The power supply can also serve as a mobile phone charger.

Power supply specification for the Raspberry Pi

  • Input voltage 100 V to 240 V AC / 50-60 Hz
  • Output voltage: 5.1 V DC
  • Output current: up to 3 A
  • Average performance during operation: 78%
  • Low load capacity (10%): 80%
  • no-load energy consumption: 0.1 W
  • Cable length: 1,2 m
  • Connector: microUSB plug
  • Manufacturer: justPi

Zasilacz dla minikomputerów Raspberry Pi Power supply unit with an output voltage of 5.1 V and a current capacity of up to 3 A, equipped with a microUSB plug. The device can power theRasbperry Piminicomputerin 3B+, 3B, 2B and B+ versionsor serve as a mobile phone charger.

Cable length 1.2 m
Voltage output from 5.1 V
Output voltage to 5.1 V
Nominal output voltage 5.1 V
Nominal power 15.5 W
Current 4 A
Power supply - type typical plug-in
Power supply - Plug microUSB
Package width 9 cm
Package height 3 cm
Package depth 11 cm
Package weight 0.104 kg
Send us your question

Patryk

05/24/24
Question: Can this power supply be used to power a Raspberry Pi Zero 2 W?
Answer: Yes, the selected power supply will be suitable for powering the Raspberry Pi Zero 2W.

Product reviews

justPi power supply microUSB 5,1V / 3A for Raspberry Pi 3B+/3B/2B/Zero

5/5

Average grade

29

Customers opinion
The following opinions are collected
and verified by
an external partner Trustmate
and come from the post-purchase process.
Petr 11.02.2026 Confirmed purchase Translated review
Pros: really high-quality 20 AWG cable and connector, stable power supply, price/performance ratio; Cons: the actual output voltage of the power supply will be more like 5.4 V -- I bought it to power the USB 3.0 hub for PC, and at the output of the USB port it is in a idle state of about 5.35 V, which is above the upper limit of the tolerance of the input voltage of the USB standard (±5%; 4.75—5.25V). Under the load of two connected 2.5" HDDs and one SSD, this voltage drops to an acceptable 5.22—5.27V, without significant fluctuations when spinning the platters; Conclusion: I recommend it more for powering newer USB 3.0 drives (~2014 and newer) made according to the revised USB 3.0 standard allowing a greater degree of tolerance up to 5.5 V. On the other hand, the power supply is really stable, and after the original Lenovo microUSB charger for tablets, the cable present in this power supply for the Raspberry Pi3 really corresponds to the stated current capacity. I have a lot of microUSB cables at home, bought in our country and in Aliexpress, cheap, expensive, even "premium" for fast charging -- but only the aforementioned short Lenovo microUSB cable from the tablet, and then this JustPi really correspond to the declared parameters. Unfortunately, the rest of the cables are complete garbage that can barely spin just one HDD (and even with a drop of more than 0.5 V, causing random clicking). While this JustPi can hold up to 3 external HDDs + 1 flash drive / SSD (I probably wouldn't torture it anymore).
Tomasz 06.10.2025 Confirmed purchase Translated review
It does a great job – I recommend it. Previously, I used a 5 V / 2.5 A power supply (i.e. with the recommended parameters for RPi 3 B+), but there were often messages about undervoltage and even restarts. I have to admit that my "raspberry" was quite heavily loaded with USB devices, which could have had an impact on this behavior. On the other hand, this power supply works great – slightly increased parameters, 5.1 V instead of 5 V and 3 A instead of 2.5 A, mean that the undervoltage message did not appear even once, and the restarts stopped completely.
Szymon 25.10.2023 Confirmed purchase Translated review
Pros: + fulfills its role 100% + using Raspberry to emulate PSX-style consoles while maintaining heat dissipation, the product ensures stable power supply even in more "demanding" productions + probably sits in the microUSB slot, so accidentally disconnecting it will be quite difficult + apart from the raspberry itself, it can also carry a lot of additional accessories + decent price Minuses: - quite short cable, but this may be a design assumption to limit voltage drops and fluctuations (you can bypass this problem by using an extension cord) To sum up, take it blindly because it works fantastic even with higher loads and has a very affordable price. I would highly recommend!
Holger 16.10.2023 Confirmed purchase Translated review
Fast delivery, good packaging. Power supply delivers clean voltage of 5 V.
Jonatan 28.06.2023 Confirmed purchase Translated review
Fast shipping, power supplies at an affordable price, well packed package, no damaged packaging.
Martin 06.06.2023 Confirmed purchase Translated review
Fully functional with Raspberry Pi 3B - does not report voltage drop even under load.
Leszek 20.04.2023 Confirmed purchase Translated review
Great product.
Jarosław 23.03.2023 Confirmed purchase Translated review
Ok, I recommend it
Jakub 02.03.2023 Confirmed purchase Translated review
I'm very happy. My Raspberry power issues are gone.
Krzysztof 13.02.2023 Confirmed purchase Translated review
Raspberry + 7'' touchscreen work as they should, so everything is OK - I recommend it.
Jarosław 13.10.2022 Confirmed purchase Translated review
Everything works as described.
Tadeusz 23.09.2022 Confirmed purchase Translated review
A decent power supply. Several of these types have been used in production for several months now. Nothing happens. Good workmanship. I recommend.
Wojciech M. 17.05.2022 Confirmed purchase Translated review
Works great
Krzysztof L. 21.02.2022 Confirmed purchase Translated review
Works very well, my Pi has no WiFi issues on it, which is very common on a variety of power supplies.
Anita J. 11.01.2022 Confirmed purchase Translated review
It holds the voltage well, I did not receive a warning message once and it appeared every now and then on the phone charger, which also had the 5V 3A mark, I also recommend it, the raspberry is happy.
Artur S. 22.10.2021 Confirmed purchase Translated review
Very good quality
Rafal D. 30.09.2021 Confirmed purchase Translated review
Great quality, stable operation, current efficiency with reserve. For many uses.
Franciszek K. 21.08.2021 Confirmed purchase Translated review
Perfect for Raspberry Pi 3 B. Malinka does not report a problem with low voltage, everything is fine;)
Rafal G. 20.08.2021 Confirmed purchase Translated review
Works With Pi :)
Tomasz K. 05.06.2021 Confirmed purchase Translated review
It works. Tochyba the most important.
Igor M. 15.02.2021 Confirmed purchase Translated review
Super
Tomasz M. 08.02.2021 Confirmed purchase Translated review
ok/
Tomasz 19.01.2026 Confirmed purchase
Stanislav 03.11.2025 Confirmed purchase
Tomasz 13.10.2025 Confirmed purchase
Jaroslaw 26.08.2024 Confirmed purchase
Robert 16.02.2024 Confirmed purchase
Adam 24.10.2023 Confirmed purchase
Wojciech 02.04.2023 Confirmed purchase

Country of Origin: Poland

Manufacturer Contact Details: Shenzhen Fengyu Electronics Co.,Ltd 5F,D1 Bld,New Times Gongrong Industrial Area, No.2 Shihuan Rd, Shilong, Shiyan, Bao'an, Shenzhen, China 518108

EU Marketer Contact Details: BOTLAND B. DERKACZ SP. K. Gola 25A - 63-640 Bralin

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