5V 4A USB-C Power Supply for Raspberry Pi 4, 20W Charger with ON/Off Switch, 5ft Cable, UL Listed - Compatible with Pi 4 Model B (8GB/4GB/2GB/1GB) & Orange Pi 5/5B
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AI Verdict
This 5V 4A (20W) USB-C power supply with a 5ft cable and ON/Off switch is for Raspberry Pi 4 and Orange Pi 5/5B users needing stable power.
This power supply is a strong fit for Raspberry Pi 4 Model B and Orange Pi 5/5B users because it provides a stable 5V 4A (20W) output, which is optimized to prevent undervoltage warnings even under heavy loads. The built-in ON/Off switch and UL Listed safety features add significant convenience and peace of mind.
If you need power for a Raspberry Pi 5 or other devices requiring more than 20W, look for a USB-C power supply rated for 5V 5A (25W) or higher with Power Delivery (PD) capabilities.
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Pros
- Delivers a consistent 5V 4A (20W) output, preventing undervoltage warnings on Raspberry Pi 4 even under heavy load.
- Features a built-in ON/Off switch, extending the lifespan of the Pi's USB-C port by avoiding constant unplugging.
- Includes an extra-long 5ft (1.5m) cable, offering more flexibility for device placement.
- UL Listed safety certification ensures protection against over-current, over-voltage, and short-circuits.
- Broad compatibility with Raspberry Pi 4 Model B (1GB-8GB), Orange Pi 5/5B, and other 5V 4A USB-C devices.
- Operates worldwide with a 100-240V input range.
Cons
- Not compatible with Raspberry Pi 5, which requires higher power delivery.
- The cable is fixed to the adapter, meaning it's not replaceable if damaged or if a shorter/longer length is desired.
- Lacks a power indicator LED that changes color to signify charging status, which some users might expect.
- The 4A output, while suitable for Pi 4, is not sufficient for more demanding single-board computers requiring 5A or more.
Dimension Scores
The 5V 4A (20W) output is specifically optimized for Raspberry Pi 4 to prevent undervoltage warnings, exceeding the standard 3A recommendation.
As a passive power adapter without moving parts, it is expected to operate silently, which is typical for this product category.
The product features mention 'high-quality materials for durability and low heat,' and it is UL Listed, indicating adherence to safety and manufacturing standards.
The 5ft (1.5m) cable provides more placement flexibility than shorter options, but it is fixed and not detachable, limiting modularity.
Best For
- Raspberry Pi 4 Model B users running resource-intensive projects or servers.
- Makers and hobbyists who frequently power cycle their Raspberry Pi 4 or Orange Pi 5/5B.
- Classroom or lab environments where a durable, UL-certified power supply with an ON/Off switch is beneficial.
- Users needing a backup or replacement 5V 4A USB-C charger for compatible single-board computers.
Not Recommended For
- Raspberry Pi 5 owners, as it does not meet the higher power requirements of that model.
- Users who need a modular power supply with a detachable USB-C cable.
- Anyone requiring a power supply with visual feedback on charging status via an LED.
Watch Out For
- This power supply delivers 5V 4A (20W), which is insufficient for the Raspberry Pi 5's higher power demands, explicitly stated as 'not compatible with Pi 5's higher power needs'.
- The power supply does not feature an LED indicator that changes color, meaning you won't get visual confirmation of charging status beyond it being on or off.
- The cable is permanently attached to the adapter, so if the 5ft length is inconvenient or the cable gets damaged, the entire unit needs replacement.
- While 4A is an upgrade from the Pi 4's recommended 3A, some advanced setups with numerous peripherals might still experience power brownouts if total current draw exceeds 4A.
Full Specifications
| ASIN | B097P2NLVH |
| Brand | iUniker |
| Color | Black |
| Amperage | 4 Amps |
| Item Weight | 5.6 ounces |
| Manufacturer | iUniker |
| Input Voltage | 240 Volts |
| Connector Type | USB Type C |
| Special Feature | Short Circuit Protection |
| Total USB Ports | 1 |
| Item model number | XSG-0503500HUS |
| Compatible Devices | Raspberry Pi 4 Model B 8GB/4GB/2GB/1GB |
| Product Dimensions | 3.15 x 1.57 x 0.79 inches |
| Included Components | 1* 5.25V 4.0A USB C power supply |
| Compatible Phone Models | Raspberry Pi 4 Model B |
What Buyers Say
Users seem to appreciate that this 5V 4A power supply effectively prevents undervoltage warnings on their Raspberry Pi 4, even when running demanding applications. The built-in ON/Off switch is a frequently mentioned convenience, saving wear and tear on the USB-C port. While specific complaints are scarce, one user noted the lack of a color-changing LED indicator, which isn't a functional issue but a missing visual cue. The general sentiment is that it's a reliable power source for compatible single-board computers.
“Dude, this thing actually stops my Pi 4 from flashing that annoying lightning bolt. The switch is a game-changer, no more yanking the cable out every time. Totally worth it for my home server setup.”
Common Praise
- Consistently prevents the 'lightning bolt' undervoltage icon on Raspberry Pi 4.
- The ON/Off switch is extremely convenient for frequent power cycling, avoiding constant unplugging.
- Provides stable power delivery even when the Pi 4 is under heavy processing load.
- The 5ft cable length offers sufficient reach for various setups.
- Works as expected for Orange Pi 5 Plus, according to one user.
Common Complaints
- The LED indicator light does not change color to show different charging states.
- Not compatible with Raspberry Pi 5, requiring a different power solution for that model.
- The cable is permanently attached, so it cannot be swapped for a different length or type.
Ownership Tips
- The ON/Off switch maintains its clickiness and functionality even with daily use over several weeks.
- The cable remains flexible and hasn't shown signs of fraying at the stress points near the connectors.
- The adapter itself stays cool to the touch, even after hours of continuous operation under load.
- Consistent 5V 4A output prevents any unexpected reboots or instability on the Pi 4 during long-term projects.
Frequently Asked Questions
Is this power supply compatible with Raspberry Pi 5?
No, this power supply is not compatible with the Raspberry Pi 5 because the Pi 5 has higher power requirements than the 5V 4A (20W) this charger provides.
Can I use this with other USB-C devices?
Yes, you can use it with other USB-C devices that require a stable 5V 4A power input, such as the Orange Pi 5/5B or Jetson Nano 2GB.
Does it have an ON/Off switch?
Yes, it features a convenient built-in ON/Off switch on the cable, allowing you to power your device on or off without unplugging it.
What is the cable length?
The power supply comes with an extra-long 5ft (1.5m) cable, providing flexibility for placement.
Is this power supply safe to use?
Yes, it is UL Listed and includes multiple safety protections such as over-current, over-voltage, and short-circuit protection.
Will a 5V 4A power supply damage my Raspberry Pi 4 which officially recommends 5V 3A?
No, a power supply with a higher amperage rating like 4A will not damage your Raspberry Pi 4. The device will only draw the current it needs, and the extra amperage provides a stable power reserve, which can be beneficial as power supplies age.
Buying Guide
When you're buying a power supply for a single-board computer like a Raspberry Pi, you need to match the voltage and ensure the amperage is sufficient. Too little amperage can lead to instability and performance issues, especially under load. An ON/Off switch is a huge quality-of-life improvement, saving wear on your device's port. Safety certifications like UL Listed mean it's been tested to prevent electrical hazards.
5V 4A (20W) Output
USB Type C Connector
UL Listed Safety Certification
Alternatives
If this power supply doesn't fit your needs, look for USB-C power supplies with higher wattage (e.g., 25W or 30W) and Power Delivery (PD) support for devices like the Raspberry Pi 5, or options with detachable cables for more flexibility.
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