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Smraza 5.1V 3A Power Supply Compatible with Raspberry Pi 4 ON/Off Switch… competes with other Single-Board Computers products on SpecPicks. Use our Compare tool to view specs side-by-side, or browse the full Single-Board Computers category for alternatives.

Smraza

Smraza 5.1V 3A Power Supply Compatible with Raspberry Pi 4 ON/Off Switch, USB-C Pi 4 Charger Raspi 4B Adapter for Raspberry Pi 4 Model B 1GB 2GB 4GB 8GB Version

Name: Smraza 5.1V 3A Power Supply Compatible with Raspberry Pi 4 ON/Off Switch, USB-C Pi 4 Charger Raspi 4B Adapter for Raspberry Pi 4 Model B 1GB 2GB 4GB
Brand: Smraza
SKU: B07VFDYNL4
Price: 12.99 USD
Availability: InStock

By Mike Perry, Hardware Editor · Verified 2026-09-07

Mike Perry has researched PC hardware since 2014, tracking 80+ GPU generations, 50+ retro handheld platforms, and 30+ vintage PC configurations. He synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides. View full credentials →

$12.99

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View Current Price on Amazon → Compare to similar single-board computers

*Price sourced from Amazon.com. Last updated 2026-04-23. Price and availability subject to change.

Bottom line: The Smraza 5.1V 3A Power Supply Compatible with Raspberry Pi 4 ON/Off Switch, USB-C Pi 4 Charger Raspi 4B Adapter for Raspberry Pi 4 Model B 1GB 2GB 4GB 8GB Version is a niche pick — read recent reviews before buying in the single-board computers category, priced around $12.99. Compare close alternatives before committing.

Due to the higher power requirements, the Raspberry Pi 4 requires a 3.0A USB-C power supply. Smraza USB-C power supply (ETL Listed) is specially designed and tested for the Raspberry Pi 4. Product feature: 1. With on/off switch, easy to power on and power off Raspberry Pi 4. 2. High quality copper wire core, good conductivity, stable transmission. 3.Fireproof enclosure, the shell has passed the ETL test, which can prevent the fire caused by charging. 4.Drop test, all kinds of drop tests have been carried out on the power supply. Smraza power supply have good anti-drop performance…

SpecPicks Verdict

SpecPicks scored Smraza 5.1V 3A Power Supply Compatible with Raspberry Pi 4 ON/Off… using a rating × review-volume × price-fit model applied to our editorial and benchmark analysis across the single-board computers category. Smraza's single-board computers lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Mixed or limited buyer feedback at this price point — focus your evaluation on recent reviews that specifically address build quality and long-term reliability, and shortlist one or two close alternatives before deciding.

Common buyer scenarios for single-board computers of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.

Pros & Cons

Pros

✓ Backed by Smraza's warranty and support channels
✓ Ships via Amazon with Prime eligibility and the standard returns policy

Cons

✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified

Key Features

Raspberry Pi 4/3 Power Supply - USB-C & Micro-USB power supply specially designed and tested for the Raspberry Pi 4. Compatible with (RPi 4 Model B), 1GB / 2GB / 4GB Version
Pi 4B & PI 3 Power Supply with ETL Certification - ETL Listed. Input 100-240V AC, 50-60Hz, 0.8A. Output 5.1V 3A. Cable length 5ft/1.5m
Raspberry Pi 4/3 Charger with on/off Design - With on/off switch, it's convenience to power on and power off your Raspberry Pi 4
Raspberry Pi 4/3 Adapter Use Premium Material - Special design and high quality materials ensure that the adapter is kept in low temperature to charge safely
If for ANY reason you aren't completely satisfied with the power supply, please let us know and we will give you a satisfy solution

Full Specifications

ASIN	B07VFDYNL4
Brand	Smraza
Color	Black
Wattage	15.3 watts
Amperage	3 Amps
Portable	No
Power Plug	No Plug
Item Weight	0.11 Kilograms
Manufacturer	Smraza
Model Number	SD04
Power Source	Corded Electric
Input Voltage	240 Volts
Mounting Type	Wall Mount
Built-In Media	'1* 5.1V 3A type-c power supply, 1*Micro Usb Adapter'
Connector Type	USB Type C
Output Current	3 Amps
Output Voltage	5.1 Volts
Frequency Range	50-60 Hz
Number of Items	1
Total USB Ports	1

Ready to buy?

Smraza 5.1V 3A Power Supply Compatible with Raspberry Pi 4 ON/Off Switch, USB-C Pi 4 Charger Raspi 4B Adapter for Raspberry Pi 4 Model B 1GB 2GB 4GB 8GB Version is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

View Current Price on Amazon →

*Price sourced from Amazon.com. Last updated 2026-04-23. Price and availability subject to change.