Best Raspberry Pi 4 PoE Hat Reviews and Buying Guide

Alright, let’s talk Raspberry Pi 4 and the magic of Power over Ethernet (PoE)! If you’re anything like me, you love the versatility of the Pi 4, but sometimes dealing with separate power cables and Ethernet connections can be a bit of a hassle. That’s where a good Raspberry Pi 4 PoE Hat comes into its own. I’ve spent a fair bit of time setting up various Pi projects, from home automation hubs to security camera systems, and the ability to power and network my Pi through a single Ethernet cable has been a game-changer for cleanliness, reliability, and placement flexibility. In this guide, we’re going to dive deep into some of the top PoE HATs for Raspberry Pi 4 on the market, look at their features, weigh their pros and cons, and help you figure out which one is the absolute best PoE HAT for your Pi 4 project. We’ll cover everything from simple power delivery to advanced features like active cooling and robust isolation, making sure you can make an informed decision for your next build.

IMAGE	PRODUCT NAME	AMAZON LINK
	waveshare Power Over Ethernet (PoE) HAT for Raspberry Pi…	View on Amazon
	GeeekPi Isolated PoE HAT for Raspberry Pi 4, Support IEEE…	View on Amazon
	LoveRPi Power-Over-Ethernet (PoE) HAT for Raspberry Pi 4…	View on Amazon
	UCTRONICS PoE Hat for Raspberry Pi 5, Power Over Ethernet…	View on Amazon
	Waveshare PoE HAT (E) Compatible with Raspberry Pi 3B+/4B…	View on Amazon

Detailed Product Reviews

waveshare Power Over Ethernet (PoE) HAT for Raspberry Pi…

When I first encountered the Waveshare PoE HAT, I was immediately drawn to its thoughtful design, especially the inclusion of an onboard USB Type-A interface. This feature alone can simplify many setups, allowing you to power an additional peripheral like an SSD, a webcam, or a different sensor directly from the HAT without needing another USB port on the Pi itself or an external powered hub. It’s built on the standard 40-pin GPIO, making it a natural fit for both the Raspberry Pi 3B+ and, more importantly for us, the Raspberry Pi 4B. The HAT boasts support for both IEEE 802.3af/at PoE network standards, which means it’s pretty versatile and can draw more power if your switch supports the ‘at’ standard. Plus, the fully isolated switch mode power supply (SMPS) is a sign of good engineering, ensuring stable and clean power. To top it all off, it includes an onboard high-speed active cooling fan, which is almost a necessity for a busy Pi 4, keeping temperatures down and performance up.

• Key Features:

  • Based on Raspberry Pi 40pin GPIO interface, suitable for Raspberry Pi 3B+/4B.
  • Supports PoE power over Ethernet, IEEE 802.3af/at PoE network standard.
  • Fully isolated switch mode power supply (SMPS).
  • Onboard USB Type A interface for powering additional external devices.
  • Onboard high-speed active cooling fan for better heat dissipation.

• Pros:

  • Supports both 802.3af and the higher-power 802.3at standards, offering flexibility.
  • Integrated USB Type A port is incredibly useful for powering peripherals.
  • Active cooling fan effectively manages Pi 4 temperatures.
  • Fully isolated power supply for enhanced safety and stability.

• Cons:

  • The extra USB port might make the HAT slightly taller or wider, potentially impacting some cases.
  • While good, the fan can introduce a slight noise in very quiet environments.

• Best for: Users who need a little extra power for USB peripherals, those with demanding Pi 4 projects requiring robust cooling, and setups that benefit from flexible PoE standards.

User feedback summary: Many users praise this HAT for its stability and the excellent addition of the USB power output. The fan is often noted for keeping the Pi cool, though some mention it’s not silent. It’s a solid choice for those looking for a feature-rich Raspberry Pi 4 PoE Hat.

GeeekPi Isolated PoE HAT for Raspberry Pi 4, Support IEEE…

The GeeekPi Isolated PoE HAT is a strong contender if you’re looking for a reliable and secure power solution for your Raspberry Pi 4. What really stands out here is the focus on isolation. With a fully isolated switched-mode power supply, this HAT ensures that your Pi is protected from potential power surges or ground loops that can sometimes occur in network environments, making it a safer choice for sensitive applications. It adheres to the IEEE 802.3af-2003 PoE standard, delivering a consistent 5V DC/2.5A output, which is generally sufficient for a stock Raspberry Pi 4 and a few minor peripherals. The inclusion of a 30mm x 30mm brushless fan is also a big plus, providing active cooling to keep your Pi 4 running smoothly without overheating, especially under load. This HAT prioritizes core functionality and safety over flashy extra features.

• Key Features:

  • Standard: IEEE 802.3af-2003 PoE compliant.
  • Input voltage: 37~57V DC; Output voltage: 5V DC/2.5A.
  • Cooling: 30mm x 30mm brushless fan.
  • Fully isolated switched-mode power supply.

• Pros:

  • Excellent galvanic isolation provides robust protection for your Pi.
  • Reliable 2.5A output is suitable for most standard Pi 4 configurations.
  • Active cooling fan helps maintain optimal operating temperatures.
  • Simple, straightforward installation for a clean setup.

• Cons:

  • Only supports the 802.3af standard, meaning lower power output compared to 802.3at hats.
  • 2.5A might be limiting for power-intensive accessories or multiple USB devices.

• Best for: Users prioritizing electrical isolation and safety, standard Raspberry Pi 4 deployments that don’t require high current draw for peripherals, and applications where a reliable, actively cooled PoE HAT for Raspberry Pi 4 is essential.

User feedback summary: Users frequently comment on the reliable performance and the peace of mind offered by the isolation. The fan is generally found to be effective and not overly loud. It’s often recommended as a solid, no-frills option that just works for basic to moderately complex Pi 4 projects.

LoveRPi Power-Over-Ethernet (PoE) HAT for Raspberry Pi 4…

The LoveRPi PoE HAT aims to be a robust solution, particularly for those building multi-Pi clusters or deploying in challenging network environments. Its primary selling point is the galvanic isolation up to 3KV, which goes beyond standard isolation and makes it suitable for non-IEEE 802.3 compliant switches or power injectors. This is a significant advantage if you’re working with older equipment or in industrial settings. It’s designed to deliver clean and reliable power to the Raspberry Pi 4, supporting not only IEEE 802.3af/at standards but also Passive DC 48V network switches, offering exceptional versatility. The description highlights its suitability for cluster nodes, emphasizing simplified cable management when powering many Pis from a single PoE switch. While it doesn’t include an integrated fan, the product explicitly recommends a ventilated case with active cooling, indicating its high-performance design expects efficient heat dissipation, especially when pushing the Pi 4 to its limits. It’s also backwards compatible with the Raspberry Pi 3 Model B+.

• Key Features:

  • Delivers clean and reliable power to Raspberry Pi 4.
  • Galvanically isolated power over Ethernet up to 3KV.
  • Designed for IEEE 802.3af, IEEE 802.3at, and Passive DC 48V network switches.
  • Built for cluster nodes, simplifying cable management.
  • Easy installation and backwards compatible with Pi 3B+/4.

• Pros:

  • Exceptional galvanic isolation provides superior electrical protection and compatibility.
  • Supports a wide range of PoE standards, including passive 48V, for maximum flexibility.
  • High-power delivery design, ideal for demanding applications and clusters.
  • Backwards compatibility with Pi 3B+ extends its usability.

• Cons:

  • Requires users to provide their own active cooling solution (fan/ventilated case).
  • May require removal of existing Pi heatsinks during installation.
  • The focus on high power and isolation might be overkill for very basic setups.

• Best for: Building Raspberry Pi clusters, industrial applications, users with non-standard or passive PoE setups, and anyone needing high-reliability, isolated power for their Raspberry Pi 4 in demanding environments.

User feedback summary: Users building clusters or needing robust isolation highly value this HAT. They consistently report stable power delivery, even under heavy loads. The need for external cooling is a recurring point, but users appreciate the performance once that’s addressed. It’s often cited as a powerful and adaptable PoE HAT for Raspberry Pi 4.

UCTRONICS PoE Hat for Raspberry Pi 5, Power Over Ethernet…

The UCTRONICS PoE Hat is a powerhouse, clearly designed with future-proofing and high-demand scenarios in mind, including support for the newer Raspberry Pi 5. For Raspberry Pi 4 users, this means getting an incredibly robust power solution. It’s a PoE+ HAT, fully compliant with IEEE 802.3af/at, and capable of an impressive maximum output power of 5V 4.5A. This higher current is fantastic for Pi 4 setups with power-hungry peripherals or if you simply want maximum stability. The HAT ensures power delivery through a fully isolated switched-mode power supply (SMPS). What truly sets this one apart in terms of user experience is its comprehensive approach to cooling: it comes with a brushless active cooling fan, 3 thermal tapes (preinstalled), and 4 heatsinks – one for the HAT board itself and three for your Raspberry Pi. Its compact size (occupying only 6 pins of the 40-pin GPIO) and pre-assembled nature make installation a breeze, and its compatibility with UCTRONICS rackmounts is a neat bonus for server-style deployments.

• Key Features:

  • PoE+ HAT, IEEE 802.3af/at compliant with 5V 4.5A max output.
  • Fully isolated switched-mode power supply (SMPS).
  • Efficient heat dissipation: brushless active cooling fan, 3 thermal tapes, and 4 heatsinks (for HAT and Pi).
  • Compact size (occupies only 6 GPIO pins, 65*58mm).
  • Pre-assembled for easy setup, compatible with Raspberry Pi 5/4B/3B+.

• Pros:

  • Exceptional 4.5A output current, perfect for demanding Pi 4 projects and beyond.
  • Includes a full cooling solution (fan + heatsinks for both Pi and HAT).
  • PoE+ (802.3at) support for higher power delivery.
  • Very compact design leaves most GPIO pins accessible.
  • Pre-assembled for quick and easy installation.
  • Future-proof with Raspberry Pi 5 compatibility.

• Cons:

  • Requires a PoE+ (802.3at) compatible switch to deliver its full power potential.
  • Might be overkill (and slightly higher cost) for very basic Pi 4 setups that don’t need the extra power or cooling.

• Best for: Power-hungry Raspberry Pi 4 projects, users who want the absolute best cooling and power stability out of the box, those looking for future-proofing with Pi 5 compatibility, and anyone needing a compact, easy-to-install PoE HAT for Raspberry Pi 4 that includes a comprehensive thermal solution.

User feedback summary: This HAT consistently receives high praise for its robust power delivery and incredibly effective cooling. Users love that it comes with everything needed for optimal thermal management. Installation is often highlighted as simple due to it being pre-assembled. It’s often cited as the go-to for high-performance or demanding Pi 4 applications.

Waveshare PoE HAT (E) Compatible with Raspberry Pi 3B+/4B…

The Waveshare PoE HAT (E) is designed for simplicity and seamless integration, particularly for users who prefer to stick with official Raspberry Pi cases. Its standout feature is its compatibility with the Raspberry Pi official case, which can be a real headache with other HATs. This is achieved through a smaller and more flexible component layout, ensuring a snug fit without requiring modifications. It offers PoE (Power Over Ethernet) capability that is IEEE 802.3af-compliant, providing a reliable standard power supply through a fully isolated switched-mode power supply (SMPS). While it doesn’t boast the higher power of PoE+ (802.3at) or include an active fan, its minimalist design is precisely its strength for certain use cases. If your goal is to power and network your Pi 4 with a single Ethernet cable in the neatest way possible, especially within an official enclosure, this HAT is definitely worth considering. It supports both Raspberry Pi 3B+ and 4B.

• Key Features:

  • Supports Raspberry Pi 3B+/4B.
  • Compatible with the Raspberry Pi official case.
  • PoE (Power Over Ethernet) capability, IEEE 802.3af-compliant.
  • Fully isolated switched-mode power supply (SMPS).
  • Smaller and more flexible with a more compact component layout.

• Pros:

  • Perfect fit for the official Raspberry Pi case, maintaining a clean aesthetic.
  • Compact design, ideal for space-constrained projects.
  • Reliable 802.3af standard power delivery with isolation.
  • Simplifies cabling by providing both power and network over one Ethernet cable.

• Cons:

  • Does not include an active cooling fan, relying on passive cooling or external case ventilation.
  • Only supports 802.3af, so lower power output compared to 802.3at HATs.
  • No extra features like an additional USB port.

• Best for: Users who prioritize compatibility with the official Raspberry Pi case, compact builds, and standard PoE power requirements for less demanding Pi 4 projects where active cooling isn’t strictly necessary. It’s an excellent choice for a clean, integrated setup.

User feedback summary: Users love how seamlessly this HAT integrates with official cases, often mentioning it’s the only one they found that works without modifications. It’s praised for its compact size and reliable, if basic, power delivery. The lack of a fan is noted, but for less strenuous tasks, it’s considered perfectly adequate.

Helpful Comparison Insights

When looking at these excellent Raspberry Pi 4 PoE Hat options, it’s clear that your specific project needs will guide your decision. We’ve seen a range of features, from robust power to advanced cooling and unique compatibility.

Starting with Power Output and PoE Standards: The UCTRONICS HAT truly shines here, supporting PoE+ (IEEE 802.3at) and delivering a remarkable 5V 4.5A. This is ideal for high-demand setups. The Waveshare (original) and LoveRPi HATs also offer 802.3at support, giving them an edge in power delivery over the GeeekPi and Waveshare (E) models, which stick to the IEEE 802.3af standard (typically maxing out around 12.95W at the Pi). If you’re running many USB peripherals or plan on using your Pi 4 for intensive tasks, going with an 802.3at-compliant HAT is a smart move, provided your PoE switch supports it.

Regarding Cooling Solutions: The UCTRONICS HAT is the clear winner for integrated cooling, coming with not just a fan, but multiple heatsinks for both the HAT and your Pi. The Waveshare (original) and GeeekPi HATs also include active cooling fans, which are essential for keeping a Raspberry Pi 4 cool under load. The LoveRPi HAT and Waveshare (E) HAT, however, do not include integrated active cooling. While the LoveRPi specifically recommends external ventilation, the Waveshare (E)’s compact design likely prioritizes space. If passive cooling isn’t enough for your Pi 4, an integrated fan saves you the hassle of adding your own.

Isolation and Protection are also key. All reviewed HATs feature a fully isolated switched-mode power supply (SMPS), which is crucial for preventing electrical issues. However, the LoveRPi HAT takes it a step further with 3KV galvanic isolation, making it an exceptional choice for environments where ground loops or power fluctuations are a concern, or with less-standard PoE equipment.

For Extra Features and Compatibility: The Waveshare (original) stands out with its onboard USB Type-A port, offering a convenient way to power an additional peripheral directly. The Waveshare (E) HAT is uniquely designed for perfect compatibility with the official Raspberry Pi case, a major plus for aesthetics and compact builds. Meanwhile, the UCTRONICS HAT’s compatibility with Raspberry Pi 5 adds significant future-proofing value for many users, even if you’re primarily focused on your Pi 4 right now. If cluster computing is your goal, the LoveRPi HAT explicitly caters to this with its robust power and isolation features.

Ultimately, if you need maximum power and comprehensive cooling in one package, the UCTRONICS PoE Hat is hard to beat. For versatility and extra USB power, the Waveshare Power Over Ethernet (PoE) HAT is a strong contender. If robust isolation for challenging environments or clusters is your priority, the LoveRPi Power-Over-Ethernet (PoE) HAT is an excellent choice. And for those seeking official case compatibility with standard PoE, the Waveshare PoE HAT (E) provides a sleek, integrated solution. The GeeekPi Isolated PoE HAT offers a balanced approach, prioritizing reliable isolation and active cooling for general use.

Final Verdict

Choosing the “best” Raspberry Pi 4 PoE Hat really boils down to what you prioritize for your unique project. It’s not a one-size-fits-all answer, as each HAT brings its own set of strengths to the table.

If you’re building a high-performance Raspberry Pi 4 setup that’s going to be under heavy load, perhaps driving multiple peripherals or simply needs the most stable power and cooling available, the UCTRONICS PoE Hat is your top pick. Its impressive 4.5A output, PoE+ support, and included heatsinks alongside an active fan make it a powerhouse solution that’s even ready for the Pi 5.

For those who frequently find themselves needing an extra USB port for a peripheral, or running a moderately demanding Pi 4, the waveshare Power Over Ethernet (PoE) HAT is an excellent choice. The integrated USB port is incredibly handy, and its 802.3af/at support combined with active cooling offers great flexibility.

If electrical isolation and robust protection are paramount – perhaps for an industrial application, a complex cluster, or when dealing with less-than-ideal network infrastructure – then the LoveRPi Power-Over-Ethernet (PoE) HAT with its 3KV galvanic isolation is the clear winner. Just remember to factor in external cooling.

And finally, if you’re a purist who wants their Raspberry Pi 4 to fit perfectly into an official case while still benefiting from PoE, the Waveshare PoE HAT (E) is tailor-made for you. Its compact design and seamless integration provide a very clean and tidy setup, making it ideal for lighter-duty, space-constrained projects.

The GeeekPi Isolated PoE HAT serves as a fantastic middle-ground option, offering solid 802.3af power, good isolation, and active cooling for a reliable, no-frills PoE HAT for Raspberry Pi 4 that covers most general-purpose needs effectively.

Consider your power requirements, cooling needs, desired extra features, and any specific compatibility issues (like official cases) before making your choice. Any of these HATs will bring the convenience of single-cable power and networking to your Raspberry Pi 4, but picking the right one will truly elevate your project.

Comprehensive FAQ Section

Q1: What is a Raspberry Pi 4 PoE Hat and why do I need one?

A: A Raspberry Pi 4 PoE Hat (Power over Ethernet Hardware Attached on Top) is an add-on board that allows your Raspberry Pi 4 to receive both electrical power and network connectivity through a single Ethernet cable. This eliminates the need for a separate power adapter and an Ethernet cable, simplifying wiring, reducing clutter, and allowing for more flexible placement of your Pi in locations where power outlets might be scarce. You need one if you want to streamline your setup and leverage the benefits of PoE technology.

Q2: What’s the difference between IEEE 802.3af and 802.3at (PoE vs. PoE+)?

A: The difference lies in the power delivery capabilities. IEEE 802.3af (standard PoE) provides up to 15.4 watts of power at the Power Sourcing Equipment (PSE) and typically around 12.95 watts at the Powered Device (PD), like your Raspberry Pi PoE HAT, after cable loss. IEEE 802.3at (PoE+) is an enhanced standard that provides more power, up to 30 watts at the PSE and about 25.5 watts at the PD. If your Raspberry Pi 4 project has many power-hungry USB peripherals or requires maximum stability under load, a PoE+ compatible HAT (like the UCTRONICS) might be beneficial, but it also requires a PoE+ capable switch.

Q3: Do I need an isolated PoE HAT for my Raspberry Pi 4?

A: An isolated PoE HAT incorporates a transformer or optical isolator to electrically separate your Raspberry Pi from the Ethernet network. This provides crucial protection against power surges, ground loops, and electrical noise. While not strictly necessary for every home setup, isolation is highly recommended for sensitive applications, industrial environments, or when connecting to network equipment with unknown grounding. It enhances safety and can prevent damage to your Pi. All the HATs reviewed here include some form of isolation, with the LoveRPi HAT offering particularly robust galvanic isolation.

Q4: Does a Raspberry Pi 4 PoE Hat include a fan?

A: Many modern Raspberry Pi 4 PoE Hats do include an active cooling fan, as the Pi 4 can generate significant heat, especially when powered through PoE. For example, the Waveshare (original), GeeekPi, and UCTRONICS HATs all come with integrated fans. However, some compact designs, like the Waveshare (E) HAT, might omit the fan to maintain a smaller footprint or for compatibility with official cases. If your project runs the Pi 4 intensively, an active cooling solution is highly recommended, either integrated or added separately.

Q5: Is a special PoE switch required to use a Raspberry Pi 4 PoE Hat?

A: Yes, to power your Raspberry Pi 4 via a PoE HAT, you’ll need a PoE-enabled Ethernet switch (or a PoE injector). A standard Ethernet switch will only provide data connectivity and no power. If your chosen PoE HAT for Raspberry Pi 4 supports the 802.3at (PoE+) standard for higher power, you’ll need a PoE+ capable switch to take full advantage of its capabilities. Ensure your switch or injector matches the PoE standard supported by your HAT.

Q6: Can I use a Raspberry Pi 4 PoE Hat with a Raspberry Pi 5?

A: While many Raspberry Pi 4 PoE Hats are designed with the 40-pin GPIO header common to Pi 3B+ and 4B, the Raspberry Pi 5 has some changes in its power delivery and GPIO usage, making direct compatibility a bit trickier. Some HATs, like the UCTRONICS PoE Hat reviewed, explicitly state compatibility with the Raspberry Pi 5. Always check the product description for specific Pi 5 compatibility before purchasing, as not all Pi 4 HATs will work flawlessly with the newer model.

Q7: How do I install a Raspberry Pi 4 PoE Hat?

A: Installing a Raspberry Pi 4 PoE Hat is generally straightforward. You’ll typically align the HAT’s 40-pin header with the Raspberry Pi’s GPIO pins and firmly press it down. Ensure the Pi is powered off before installation. Some HATs might require you to remove existing heatsinks from your Pi (e.g., on the Ethernet or USB chips) to ensure proper seating or cooling. Once installed, simply connect an Ethernet cable from a PoE-enabled switch or injector to your Raspberry Pi’s Ethernet port, and it should power up and connect to the network. Refer to the specific product’s manual for detailed instructions.