10 Best Arduino Lan Ethernet Module in 2026

Connecting your Arduino projects to the internet opens up endless possibilities for data logging and remote control. Choosing the right Ethernet module ensures stable communication and easy integration with your existing code and hardware setup.

We evaluated ten leading Ethernet modules based on their chipsets, voltage compatibility, and network stability. Our analysis focuses on real-world performance, ease of use, and support for standard networking protocols like TCP and UDP.

Each selection highlights specific strengths such as SPI speed, socket handling, or physical durability. Note that availability and pricing can change frequently, so verify current stock before purchasing your next development component.

Top 3 Picks for Best Arduino Lan Ethernet Module

Top 10 Best Arduino Lan Ethernet Module in 2026 Compared

The following table provides a side-by-side comparison of all ten selected Ethernet modules. This overview highlights key specifications and compatibility details to help you quickly identify the best fit for your specific project requirements.

1. HiLetgo 2pcs W5500 Ethernet LAN Network Module – Best Overall Performance

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HiLetgo 2pcs W5500 Ethernet LAN Network Module

W5500 Chipset

32K TX/RX Buffer

8 Independent Sockets

TCP/IP Stack Support

This HiLetgo module features the W5500 chipset which provides robust network capabilities for Arduino projects. It supports 32K bytes of internal memory for transmit and receive buffers ensuring smooth data flow even under heavy load.

Pros

• High-speed SPI communication
• Large buffer memory
• Multiple socket support
• Stable TCP/IP implementation
• Compact PCB design

Cons

• Requires external power supply
• Limited documentation

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The ability to handle eight independent sockets simultaneously makes this module ideal for complex applications requiring multiple connections. It also supports Wake on LAN functionality over UDP which is useful for remote power management scenarios.

While it offers excellent performance, users should note the requirement for a stable 3.3V power supply with sufficient current capacity. The absence of extensive documentation might pose a slight challenge for beginners new to SPI Ethernet protocols.

For developers seeking a reliable and high-performance Ethernet solution for their Arduino or STM32 projects, this module offers a strong balance of features and compatibility that stands out among competitors.

Advanced Socket Management

The support for eight independent sockets allows you to run multiple network services or connections at once without interfering with each other.

Buffer Capacity Advantage

With 32K bytes of memory for TX/RX buffers, this module can handle larger data packets and sudden spikes in network traffic more effectively.

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2. HiLetgo W5500 SPI to LAN Ethernet Network Module – Best Value Option

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HiLetgo W5500 SPI to LAN Ethernet Network Module

W5500 Chipset

3.3V Power Supply

TTL SPI Interface

STM32 Compatible

This module delivers solid W5500 performance at a budget-friendly price point making it accessible for hobbyists and small-scale projects. It operates on 3.3V with a TTL level SPI interface that simplifies connections to most microcontrollers.

Pros

• Affordable pricing
• Standard SPI interface
• Wide voltage support
• Compact footprint
• Reliable connectivity

Cons

• Requires 200mA current
• No shield form factor

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The design prioritizes functionality over extras which keeps costs down while maintaining the core capabilities needed for TCP/IP communication. Users should ensure their power supply can deliver at least 200mA to maintain stable operation.

While it lacks the convenience of a shield format that plugs directly onto boards, the module style allows for more flexible integration into custom PCBs or breadboard setups. This flexibility is a key advantage for advanced users.

If you need a cost-effective way to add Ethernet capabilities to your Arduino or STM32 system without compromising on basic network features this module is a practical choice for many applications.

Power Efficiency

Operating on 3.3V ensures compatibility with modern microcontrollers while keeping power consumption manageable for portable projects.

Interface Simplicity

The TTL level SPI interface matches standard logic levels reducing the need for additional voltage shifters in most setups.

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3. ACEIRMC 5pcs ENC28J60 ENC28J60-I/SO HR911105A – Best Multi-Pack Value

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ACEIRMC 5pcs ENC28J60 ENC28J60-I/SO HR911105A

ENC28J60-I/SO Chip

IEEE 802.3 Compatible

RJ45 Connector

25MHZ Crystal

This five-pack offers exceptional value for developers who need multiple units or want to stock up for larger production runs. The ENC28J60 chip is a mature solution known for its stability and wide support in legacy systems.

Pros

• Five unit package
• High reliability rating
• Standard Ethernet compliance
• Integrated transformer
• Stable clock crystal

Cons

• Older chipset than W5500
• Slower SPI speeds

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Each module includes an HR911105A isolation transformer which ensures safe and noise-free communication with the Ethernet cable. The 25MHZ crystal on board provides a stable clock source for reliable data transmission timing.

Although the ENC28J60 is an older chipset compared to newer options like the W5500 it remains a trusted choice for basic networking tasks where extreme speed is not the primary requirement. This makes it suitable for sensor networks and simple IoT devices.

For teams or individuals managing several projects simultaneously getting five modules in one purchase simplifies inventory management and reduces the cost per unit significantly over time.

Package Quantity

Receiving five units in a single order allows you to equip multiple devices or keep spares on hand for ongoing development work.

Signal Isolation

The included HR911105A transformer protects your microcontroller from electrical noise and potential surges on the network line.

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4. ACEIRMC W5500 SPI to LAN Ethernet Network Module – Best for Small Batch Production

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ACEIRMC W5500 SPI to LAN Ethernet Network Module

W5500 Chipset

23 by 25 mm PCB

3.3V Stable Voltage

SPI Interface Control

This module combines the performance of the W5500 chipset with a multi-pack option suitable for small batch production or team projects. The PCB size measures 23 by 25 mm offering a compact form factor that fits easily into tight enclosures.

Pros

• Five unit availability
• Consistent voltage handling
• Compact PCB size
• W5500 performance
• Clear interface specs

Cons

• Power supply must be stable
• Requires careful wiring

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It emphasizes the need for a continuous and stable +3.3V supply to ensure reliable operation which is a common requirement for high-speed Ethernet chips. The TTL level SPI interface makes it straightforward to connect to STM32 and Arduino boards.

While the power requirements are specific the module offers robust network capabilities including TCP/IP stack support that simplifies software development. This reduces the need for complex low-level networking code in your application.

For projects requiring multiple Ethernet nodes or when prototyping for small scale deployment this option provides a practical balance of performance and quantity without needing to source individual units separately.

Voltage Stability Needs

Ensuring a stable voltage supply is critical for maintaining consistent network performance with these modules.

Compact Design

The small PCB footprint allows for integration into portable or space-constrained devices without bulk.

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5. 2-Pack W5500 Ethernet LAN Module – Best for Industrial Scenarios

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2-Pack W5500 Ethernet LAN Module

Integrated TCP/IP Stack

10/100Mbps PHY

Auto-negotiation Support

SPI Mode 0/3

This module supports both SPI Mode 0 and 3 offering flexibility in how it connects to different microcontrollers. It features an embedded 10/100Mbps Ethernet PHY with auto-negotiation allowing it to adapt to various network environments automatically.

Pros

• Supports SPI modes 0 and 3
• Auto-negotiation enabled
• Full/half duplex support
• Integrated stack
• Dual voltage tolerant

Cons

• Lower customer rating
• Limited support resources

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The integrated TCP/IP stack handles protocol management internally which can reduce the processing load on your main controller. This is particularly useful when working with lower-power microcontrollers that have limited RAM or CPU cycles.

While it mentions industrial-grade capabilities users should be aware of the current customer rating which indicates potential quality consistency or support issues. Testing before bulk deployment is advisable to ensure it meets your specific reliability standards.

For those requiring specific SPI mode support and automatic duplex negotiation in an industrial setting this module presents a feature-rich option that warrants further validation based on project needs.

Auto-negotiation Feature

Auto-negotiation helps the module automatically detect network settings reducing manual configuration requirements during setup.

SPI Flexibility

Supporting multiple SPI modes means it can work with a wider variety of microcontroller clock configurations.

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6. DEVMO W5100 Ethernet Network Shield LAN – Best Shield Format

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DEVMO W5100 Ethernet Network Shield LAN

W5100 Chipset

SD Card Slot Included

RJ45 Ethernet Jack

UNO MEGA Compatible

This shield connects directly to Arduino UNO and MEGA boards eliminating the need for jumper wires during prototyping. It includes an SD card slot which is a significant advantage for storing data locally without needing external storage modules.

Pros

• Shield form factor
• SD card support
• Direct board mounting
• Standard RJ45 jack
• W5100 stability

Cons

• Older W5100 chip
• Taller profile

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The W5100 chip is known for its stable hardware TCP/IP implementation and simplifies code development for network tasks. A standard RJ45 Ethernet jack is included ensuring easy physical connection to your local network or router.

While the W5100 is an older chipset it remains reliable for many standard applications and benefits from extensive community support. The shield format does increase the height of your stack which could be a consideration for tight enclosures.

If you need a quick plug-and-play solution with local storage capabilities this shield offers convenience and compatibility that works well with common Arduino boards for straightforward projects.

Storage Integration

The built-in SD card slot allows for seamless data logging without needing additional hardware components.

Direct Mounting

Stacking directly on top of your Arduino board simplifies wiring and reduces clutter in your setup.

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7. HiLetgo ENC28J60 ENC28J60-I/SO HR911105A – Best Single Unit Classic

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HiLetgo ENC28J60 ENC28J60-I/SO HR911105A

ENC28J60-I/SO Chip

25MHZ Crystal

HR911105A Transformer

3.3V Power

This single unit module offers a classic and reliable networking option with a high customer rating reflecting consistent user satisfaction. The ENC28J60 chip is widely supported across various microcontrollers making it a versatile choice for developers.

Pros

• Highly rated
• Stable crystal
• Isolation transformer
• Wide MCU support
• Affordable

Cons

• Limited to 10/100
• Single unit only

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It includes a 25MHZ crystal and an HR911105A isolation transformer to ensure clean and stable signal transmission on the Ethernet line. These components are crucial for preventing data errors caused by noise or clock drift in the network interface.

While it is limited to 10/100 Mbps speeds which is standard for this chip it handles most basic IoT and logging tasks efficiently. The 3.3V power requirement aligns well with modern logic levels for easy integration.

If you need a single reliable Ethernet module for a specific project without bulk this option provides a balance of quality and compatibility that has been proven over many development cycles.

Signal Integrity

The isolation transformer helps protect your board from electrical noise ensuring consistent data transfer rates.

Microcontroller Support

Its broad compatibility means you can use it with many different boards beyond just standard Arduino models.

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8. W5500 Ethernet Module TCP/IP Network Module – Best Universal Compatibility

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W5500 Ethernet Module TCP/IP Network Module

W5500 Chipset

Full-size RJ45 Port

SPI Interface

ESP32 Compatible

This module has earned a perfect user rating which indicates high satisfaction with its reliability and ease of use. It is compatible with both 5V and 3.3V microcontrollers including popular boards like ESP32 and ESP8266 which broadens its applicability significantly.

Pros

• Perfect rating
• Works with ESP32
• Full-size RJ45
• 5V/3.3V tolerant
• Clear tutorials

Cons

• Single unit only
• No bulk discount

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The full-size RJ45 port ensures a standard connection that is easy to plug into routers or switches without adapters. Its SPI interface allows for fast data transfer and seamless integration with the hardware SPI pins on most development boards.

Users can find tutorials and sample codes online to help get started quickly which reduces the learning curve for those new to Ethernet networking. This support ecosystem is a significant advantage for hobbyists and students.

If you prioritize reliability and broad platform support this module is an excellent choice for connecting a wide variety of microcontrollers to the internet or local network.

Platform Support

Compatibility with ESP32 and ESP8266 extends its use beyond traditional Arduino boards to more advanced IoT devices.

User Resources

Available tutorials and sample code accelerate development time and help troubleshoot common connection issues.

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9. 2PCS LAN8720 Ethernet Board High Performance – Best Embedded Server Option

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2PCS LAN8720 Ethernet Board High Performance

LAN8720 Chipset

HP Auto-MDIX Support

Ultra Low Power

1.2V Regulator

This board focuses on providing a high-performance Ethernet Physical Layer transceiver that can be used in embedded web server applications. It features HP Auto-MDIX support which automatically handles crossover cable detection simplifying physical connections.

Pros

• Ultra low power design
• HP Auto-MDIX support
• Built-in voltage regulator
• Ethernet PHY dedicated
• Two units included

Cons

• Requires external MCU
• Less community support

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The ultra low power design is ideal for battery-operated or energy-conscious projects where efficiency is a priority. An integrated 1.2V regulator helps manage internal voltage requirements reducing the complexity of external power conditioning.

While it is designed primarily as a PHY module rather than a full controller it offers flexibility for developers building custom hardware. The two-pack provides enough units for testing and deployment without needing separate purchases for small batches.

If you are building a custom embedded system requiring efficient power management and standard Ethernet connectivity this PHY module offers a solid foundation for hardware development.

Power Efficiency

The low power design makes this module suitable for portable devices that need reliable network connectivity without draining batteries quickly.

Regulator Integration

An internal regulator simplifies power supply requirements ensuring the module receives stable voltage for consistent operation.

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10. Hailege ENC28J60 ENC28J60-I/SO HR911105A – Best Alternative Classic

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Hailege ENC28J60 ENC28J60-I/SO HR911105A

ENC28J60-I/SO Chip

HR911105A Transformer

25MHZ Crystal

AVR LPC Compatible

This module is highly rated and provides a dependable networking solution for a range of microcontrollers including AVR and LPC. The design includes a 25MHZ crystal and HR911105A isolation transformer to ensure robust and error-free communication.

Pros

• High rating
• Stable components
• Broad MCU support
• Reliable transformer
• Cost-effective

Cons

• Single unit only
• Older tech

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It is optimized for 3.3V operation which matches the logic levels of most modern development boards. The SPI interface allows for straightforward connections without needing additional protocol converters or complex wiring.

While it uses the older ENC28J60 chipset the module maintains a reputation for stability which makes it suitable for long-running applications where consistency is valued over maximum speed. This is particularly relevant for sensor networks or logging systems.

For those looking for a reliable alternative to other brands offering similar specifications this option provides a solid choice backed by high user satisfaction and proven component selection.

Component Quality

The use of standard high-quality components like the isolation transformer contributes to the module's reliability over time.

Compatibility Range

Support for AVR and LPC controllers ensures you can use this module across different hardware ecosystems effectively.

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Buying Guide – How to Choose the Best Arduino Lan Ethernet Module

Selecting the right Ethernet module requires careful consideration of several technical factors to ensure compatibility and performance for your specific project needs.

Chipset Technology

The chipset determines the capabilities of your Ethernet module such as the number of sockets supported and the speed of data transfer. Newer chips like the W5500 offer better performance and larger buffers compared to older options like the ENC28J60 or W5100.

Choose a chipset that aligns with your performance requirements and the complexity of your network application.

Power Requirements

Most Ethernet modules operate at 3.3V logic levels but some may require a stable external power supply with a specific current capacity. Ensuring your power source can meet these requirements is crucial for preventing network drops or hardware instability.

Verify the voltage and current specs before connecting the module to your microcontroller or power source.

Interface Type

The interface type dictates how the module connects to your microcontroller. SPI is the most common interface for Ethernet modules due to its speed and ease of implementation on most boards.

Check your microcontroller's available pins and supported communication protocols to ensure the module will connect correctly without additional adapters.

Physical Form Factor

Ethernet modules come as standalone boards or shields that plug directly onto microcontroller boards. Shields simplify wiring and save space but may limit stacking options while standalone modules offer more flexibility for custom layouts.

Decide on a form factor that fits your enclosure and assembly preferences before making a purchase.

Network Protocol Support

Ensure the module supports the necessary network protocols for your application such as TCP UDP or HTTP. Hardware-based stack support reduces the software burden on your main processor and improves overall performance.

Look for modules that advertise full TCP/IP stack support if you want to offload protocol management from your code.

Physical Connector Quality

The quality of the RJ45 connector and integrated isolation transformer impacts signal integrity and reliability. High-quality modules often include robust transformers to protect against electrical noise and surges on the network line.

Prioritize modules with standard high-quality connectors and isolation features to ensure long-term stability.

Price and Value

Price should be balanced against the features and reliability offered by the module. Multi-packs can offer better value for team projects or bulk needs but consider whether you actually need multiple units.

Compare the specifications and reviews of different options to find the best balance between cost and capability for your needs.

Community Support

Modules with strong community support often come with tutorials sample code and troubleshooting resources that can speed up development. Popular chips tend to have more libraries available for various programming environments.

Research the availability of software libraries and user guides before committing to a less common module type.

How to Use and Care for Your Arduino Lan Ethernet Module

Begin by connecting the power pins of the module to your microcontroller ensuring you match the voltage requirements. Most modules need 3.3V so using the wrong voltage could damage the component or cause unreliable operation.

Wire the SPI pins including MOSI MISO SCK and CS to the corresponding pins on your board. Refer to the module documentation to confirm pin mappings as some boards may use different default SPI pins.

After wiring the hardware install the appropriate network library for your microcontroller environment. Test the connection using a sample sketch that attempts to connect to a web server or local network to verify functionality.

Frequently Asked Questions

Final Thoughts on Choosing the Best Arduino Lan Ethernet Module

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