RasTech for Raspberry Pi 5 GaN PD 27W Power Supply 5.1V 5A USB-C Pi 5 Power Adapter for Raspberry Pi 5 16GB/8GB/4GB/2GB
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AI Verdict
This 27W GaN USB-C power supply delivers 5.1V/5A, preventing voltage drops for Raspberry Pi 5 users needing stable power.
This power supply is specifically engineered for the Raspberry Pi 5, delivering the critical 5.1V/5A output to prevent voltage drops and enable the Pi 5's full USB power potential (1.6A). Its GaN technology ensures efficient and cool operation, directly addressing common power issues with the Pi 5.
If you need more than 27W or multiple USB-C outputs, look for a higher wattage GaN charger with multiple PD-enabled ports.
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Pros
- Provides a stable 5.1V/5A output, eliminating low voltage issues even under full load on the Raspberry Pi 5.
- Features 6-layer protection, including over-power, over-current, and short-circuit safeguards.
- Automatically increases the Pi 5's USB port power limit from 600mA to 1.6A when connected.
- Utilizes GaN technology for a compact form factor and cooler operation compared to traditional power bricks.
- Offers broad USB-C PD compatibility, supporting 9V/3A, 12V/2.25A, and 15V/1.8A for other devices.
- Includes a 1.3-meter USB-C cable, which is a practical length for many setups.
Cons
- The USB-C cable is permanently attached, limiting flexibility if a different cable length or type is desired.
- Only provides a single USB-C output, so it cannot power multiple PD devices simultaneously.
- While compact, its 3.82 x 2.99 x 2.13 inch dimensions might still block adjacent outlets on some power strips.
Dimension Scores
It delivers a stable 5.1V/5A output, preventing voltage drops and enabling the Pi 5's USB ports to supply 1.6A, and uses efficient GaN technology.
As a compact GaN power supply, it operates silently without any moving parts or fans.
It features 6-layer protection for safe operation and a relatively beefy 1.3-meter cable, suggesting durability.
The 1.3-meter cable length is functional, but it's permanently attached, limiting flexibility for custom setups.
Best For
- Raspberry Pi 5 users running power-hungry peripherals or intensive applications.
- Anyone experiencing voltage drops or instability with their Raspberry Pi 5 using a less powerful supply.
- Makers and developers building projects that require consistent and reliable 5.1V/5A power delivery.
Not Recommended For
- Users needing a power supply with multiple USB-C outputs for simultaneous device charging.
- Those who prefer a power adapter with a detachable USB-C cable for custom lengths or replacements.
Watch Out For
- The fixed 1.3-meter cable length might be too short for setups where the power outlet is far from the Raspberry Pi 5.
- Despite GaN tech, its 3.82 x 2.99 x 2.13 inch footprint could still obstruct other plugs on a crowded power strip.
- While it supports other PD profiles, its primary optimization is for the Pi 5's specific 5.1V/5A requirement, so don't expect it to be a universal fast charger for all your gadgets.
Full Specifications
| ASIN | B0CLV6WB4L |
| Brand | Ｒ∞ＲａｓＴｅｃｈ |
| Color | Black |
| Amperage | 5 Amps |
| Item Weight | 4.2 ounces |
| Manufacturer | Ｒ∞ＲａｓＴｅｃｈ |
| Input Voltage | 240 Volts |
| Connector Type | USB Type C |
| Special Feature | Short Circuit Protection |
| Total USB Ports | 1 |
| Item model number | XS-GaN-27W USB-C Power Supply US |
| Compatible Devices | Raspberry Pi 5, PD-compatible devices |
| Package Dimensions | 3.82 x 2.99 x 2.13 inches |
| Included Components | power supply for Raspberry Pi 5 16GB/8GB/4GB/2GB |
| Compatible Phone Models | Compatible with Raspberry Pi 5 16GB/8GB/4GB/2GB |
What Buyers Say
Users consistently highlight that this RasTech power supply solves the notorious low voltage issues common with the Raspberry Pi 5, ensuring stable operation even when pushing the board with peripherals. The GaN technology is a recurring point of praise, keeping the unit compact and cool to the touch, even during extended use. Many appreciate the automatic boost to the Pi 5's USB port power, which is crucial for external devices. The included 1.3-meter cable with an on/off switch is also a frequently mentioned convenience.
“Finally, my Pi 5 isn't throwing low voltage warnings every five minutes! This thing just works, and it doesn't even get hot. Worth every penny for the peace of mind.”
Common Praise
- Eliminates low voltage warnings and random shutdowns on Raspberry Pi 5.
- Provides a stable 5.1V/5A output even under heavy load.
- GaN technology keeps the adapter compact and cool during operation.
- Automatically increases USB port current limit to 1.6A for peripherals.
- The 1.3-meter cable is a practical length for most setups.
- Includes a convenient on/off switch on the cable.
Common Complaints
- The USB-C cable is permanently attached, preventing replacement or use of a shorter/longer cable.
- Only one USB-C output, so it can't power multiple devices simultaneously.
- Some users might find the 1.3-meter cable length restrictive for certain mounting scenarios.
Ownership Tips
- The GaN design really does keep the brick from getting hot, even after hours of continuous use.
- The fixed cable feels sturdy, but you're stuck with the 1.3-meter length.
- The automatic USB power boost for the Pi 5 is a game-changer for connecting external SSDs or other power-hungry accessories.
- It's surprisingly small for a 27W charger, making it easy to tuck away behind a monitor or desk.
Frequently Asked Questions
Is this power supply compatible with older Raspberry Pi models?
No, this power supply is specifically designed and optimized for the Raspberry Pi 5. While it has a USB-C connector, its 5.1V/5A output and features like the USB port power boost are tailored for the Pi 5.
Does this power supply prevent the 'low voltage' warning on the Raspberry Pi 5?
Yes, its optimized 5.1V/5A output is designed to prevent low voltage warnings and ensure stable operation, even under full load.
Can I use this to charge my phone or other USB-C devices?
Yes, it supports USB-C Power Delivery (PD) and can deliver 9V/3A, 12V/2.25A, and 15V/1.8A, making it compatible with many other PD-enabled devices.
What is GaN technology and why does it matter?
GaN (Gallium Nitride) is a semiconductor material that allows chargers to be smaller, more efficient, and run cooler than traditional silicon-based chargers. This means a compact power supply that doesn't overheat.
Does the cable have an on/off switch?
Some listings indicate that the 1.3-meter USB-C cable includes an on/off switch for convenience.
Buying Guide
When you're powering a Raspberry Pi 5, especially if you're connecting a bunch of USB devices or running intense tasks, you need a power supply that can actually deliver the juice. The Pi 5 is picky, and a weak charger will cause instability and those annoying low voltage warnings. Look for specific voltage and amperage, not just wattage, to ensure it meets the Pi 5's needs.
5.1V/5A Output
GaN Technology
USB Port Power Boost (1.6A)
Alternatives
If this doesn't fit, search for a USB-C PD power supply with higher wattage (e.g., 45W or 65W) and multiple USB-C outputs, ensuring it still supports 5.1V/5A for the Pi 5.
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