10 Best Arduino Lan Ethernet Module in 2026

Connecting your microcontroller to the internet opens endless possibilities for IoT and automation. An Arduino Lan Ethernet Module provides a stable wired connection that Wi-Fi often struggles to match in reliability and speed.

We evaluated ten popular modules based on chip performance, voltage compatibility, and ease of integration. Our selection covers both compact SPI modules and full shields to suit different project requirements and budget constraints.

Each pick highlights specific strengths like socket counts or physical durability. Please note that prices and availability change frequently so verify current details before purchasing your next network interface component.

Top 3 Picks for Best Arduino Lan Ethernet Module

Top 10 Best Arduino Lan Ethernet Module in 2026 Compared

The following table breaks down the core specifications of each module to help you quickly identify the right fit for your specific microcontroller and project needs.

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

4.2Editor scoreCheck price on Amazon

HiLetgo 2pcs W5500 Ethernet LAN Network Module

W5500 Chip Support

32k Bytes SPI

3.3V/5V Input

8 Independent Sockets

The HiLetgo 2pcs W5500 module stands out as the top choice for reliable networking on Arduino and STM32 platforms. It supports TCP/IP stacks efficiently and provides eight independent sockets for complex multi-connection tasks simultaneously.

Pros

• 8 independent sockets
• Wake on LAN over UDP
• Internal 32Kbytes memory
• High speed SPI
• Compatible with STM32

Cons

• Requires stable power supply
• Small form factor

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Its internal 32k bytes memory acts as a buffer for TX/RX data which improves throughput significantly. The module handles high speed serial peripheral interface communication well making it suitable for real time applications.

Some users may find the compact size slightly tricky to wire without a breakout board. Ensuring a stable power source above 200mA is critical to avoid intermittent disconnections during heavy data transfer.

This module is ideal for developers needing multiple network connections on a single controller. It balances performance and cost effectively for most industrial and hobbyist Ethernet projects.

Multi Socket Capability

Having eight sockets allows you to run multiple clients or servers at once without context switching overhead.

Memory Buffer

The 32KB internal memory ensures smooth data flow even when the microcontroller is busy processing other tasks.

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

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HiLetgo W5500 SPI to LAN Ethernet Network Module

W5500 Chip

TTL Level SPI

3.3V External Power

STM32 Interface

This module offers excellent value for makers who need standard W5500 performance without extra frills. It connects via a clear TTL level SPI interface which simplifies wiring for beginners.

Pros

• Affordable price
• Clear TTL SPI interface
• Good power specs
• Compatible with STM32
• Small footprint

Cons

• Requires careful voltage level
• Single unit purchase

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The power supply requirement is well documented requiring 3.3V external power above 200mA current. This clarity helps avoid common burnout issues seen with cheaper unregulated modules.

While it lacks some advanced features of bulk packs it remains a reliable single unit. It fits well in projects where space is limited and budget is tight.

Buy this if you want a straightforward W5500 interface for your Arduino or STM32 setup. It delivers solid performance for the price point.

Simple Interface

The TTL level SPI makes it easy to connect to logic levels without extra shifter circuits.

Documented Power Needs

Clear current requirements help you select the right power supply upfront.

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3. ACEIRMC W5500 SPI to LAN Ethernet Network Module – Best Premium

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ACEIRMC W5500 SPI to LAN Ethernet Network Module

5pcs Pack

23x25mm PCB

Stable 3.3V

TTL SPI Control

ACEIRMC provides a bulk pack of five modules which is perfect for prototyping or small batch production. The PCB size is compact at 23 by 25 mm saving valuable board space.

Pros

• 5 pieces included
• Compact PCB size
• Stable voltage supply
• TTL SPI interface
• Good for testing

Cons

• Price per unit higher
• Limited availability

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Each module expects a stable 3.3V supply with at least 200mA current to function correctly. This ensures consistent operation across all units in your deployment without voltage drops.

The TTL level SPI interface is straightforward to implement on most microcontrollers. Having five units allows you to test multiple configurations or replace faulty boards easily.

Consider this option if you need multiple modules for a larger project. The bundle reduces shipping costs and ensures consistent hardware across your network.

Bulk Utility

Five units allow for easy redundancy or simultaneous development of multiple devices.

Compact Design

The small PCB footprint leaves room for other components on crowded boards.

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4. 2-Pack W5500 Ethernet LAN Module – High Speed Performance

1.0Editor scoreCheck price on Amazon

2-Pack W5500 Ethernet LAN Module

Hardware TCP/IP Stack

8 Sockets

Dual Voltage

80MHz SPI

This 2-pack offers a robust hardware TCP/IP stack with support for various protocols like IPv4 and PPPoE. It manages eight simultaneous sockets which is great for high concurrency applications.

Pros

• Integrated TCP/UDP
• 8 simultaneous sockets
• 3.3V core
• 80MHz SPI support
• Auto-negotiation

Cons

• Low rating
• Variable quality

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The module supports dual voltage operation with a 3.3V core and 5V I/O tolerance. It also features high speed SPI interface at 80MHz for real-time control scenarios.

The PHY is industrial grade supporting 10/100Mbps with auto-negotiation for duplex modes. This ensures compatibility with most standard Ethernet switches and routers.

Use this if you need specific technical specs like 80MHz SPI. Be cautious of the lower rating which might indicate inconsistent quality control.

High Speed SPI

Support for Mode 0/3 at 80MHz allows faster data transfer than standard SPI.

Industrial PHY

Embedded PHY ensures stable physical layer performance in noisy environments.

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5. DEVMO W5100 Ethernet Shield – Full Board Solution

3.8Editor scoreCheck price on Amazon

DEVMO W5100 Ethernet Shield

W5100 Chip

SD Card Slot

RJ45 Jack

UNO R3 Compatible

This shield connects directly to UNO R3 boards making setup extremely quick and simple. It includes an SD card slot for storing web pages or log files locally.

Pros

• Plug and play
• SD Card Slot
• Standard RJ45
• IP Stack support
• Easy setup

Cons

• Larger size
• Less portable

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The W5100 chip provides a network stack for TCP and UDP without extra software overhead. It uses a standard RJ45 jack which makes cable swapping straightforward.

Unlike small modules this covers the whole board leaving fewer pins free for other sensors. It is best for stationary projects like web servers rather than mobile robots.

Choose this if you prefer a shield over a module for ease of installation. The SD slot adds utility for local storage tasks.

SD Card Integration

Built-in SD slot removes the need for a separate card reader.

Plug and Play

Stacking on UNO makes connection almost foolproof for beginners.

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6. HiLetgo ENC28J60 – Classic SPI Ethernet

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HiLetgo ENC28J60

ENC28J60 Chip

25MHZ Crystal

HR911105A Isolation

3.3V Power

The ENC28J60 chip is a classic choice for Ethernet on small microcontrollers. It uses a 25MHZ crystal for timing and includes an isolation transformer on the board.

Pros

• ENC28J60 Chip
• 25MHZ Crystal
• HR911105A Isolation
• Low power
• Wide MCU support

Cons

• Slower than W5500
• Requires more code

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This module runs on 3.3V and supports a wide range of microcontrollers including AVR and STM32. It is generally cheaper than W5500 options for simple needs.

While slower than newer chips it is reliable for basic web server tasks. The isolation transformer helps protect your board from electrical spikes in the cable.

Ideal for projects where cost matters more than throughput. It is a standard reference design used in many tutorials.

Isolation Protection

HR911105A transformer provides electrical isolation for safer operation.

Crystal Timing

25MHZ crystal ensures accurate signal processing without external parts.

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7. ACEIRMC 5pcs ENC28J60 – Bulk Classic Option

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ACEIRMC 5pcs ENC28J60

ENC28J60 Chip

25MHZ Crystal

HR911105A Isolation

802.3 Compatible

This pack offers five ENC28J60 modules for a competitive price. It is IEEE 802.3 compatible ensuring it works with standard Ethernet networks easily.

Pros

• 5 pieces included
• IEEE 802.3 compliant
• 25MHZ Crystal
• Isolation transformer
• High rating

Cons

• Older chip
• Limited speed

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Each unit has the same 25MHZ crystal and isolation features as the HiLetgo version. The high rating suggests consistent quality across the batch.

Since it is a multi-pack it is great for classroom kits or bulk deployments. It provides redundancy if one unit fails in a larger network setup.

Buy this for low cost bulk networking needs. It is well suited for educational projects or simple sensor nodes.

Standard Compliance

IEEE 802.3 compatibility guarantees it works with modern switches.

High Rating

Strong user reviews indicate reliable performance out of the box.

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8. W5500 Ethernet Module TCP/IP – Simple One Piece

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W5500 Ethernet Module TCP/IP

W5500 Chip

Full RJ45 Port

SPI Interface

5V/3.3V Support

This single module is praised for its stability and ease of use. It includes a full-size RJ45 port for standard Ethernet connections and supports both 5V and 3.3V logic.

Pros

• Stable connectivity
• Full-size RJ45
• Simple SPI
• Perfect rating
• Good tutorials

Cons

• Single unit
• Basic features

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The SPI interface is straightforward to integrate with popular boards like ESP32 and ESP8266. Online tutorials make it easy for DIYers to get started quickly.

It supports TCP/IP and UDP protocols out of the box ensuring versatile connectivity. Perfect for IoT projects that require reliable wired links.

Select this if you want a high-rated reliable module with full tutorials. It is a safe choice for beginners and experts alike.

Stability

Users report stable connections even during heavy data throughput.

Tutorials

Abundant sample code simplifies integration for new developers.

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9. 2PCS LAN8720 Ethernet Board – PHY Transceiver

3.9Editor scoreCheck price on Amazon

2PCS LAN8720 Ethernet Board

LAN8720 Chip

HP Auto-MDIX

Ultra Low Power

3.3V Regulator

This board features the LAN8720 high performance physical layer transceiver. It includes HP Auto-MDIX to automatically detect cable types without manual crossover switching.

Pros

• LAN8720 PHY
• Auto-MDIX support
• Low power design
• 1.2V regulator
• High performance

Cons

• Complex setup
• Lower rating

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The module is designed for ultra low power applications and runs on a single 3.3V supply. It includes a 1.2V regulator for internal logic levels.

It is suitable for embedded server applications where power efficiency matters. Two pieces are included which adds value for dual channel projects.

Use this if you need specific PHY features like Auto-MDIX. It requires careful configuration compared to plug-and-play W5500 modules.

Auto-MDIX

Cable detection ensures you do not need special crossover cables.

Low Power

Ultra low power design extends battery life in portable devices.

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10. Hailege ENC28J60 – Budget Ethernet Module

4.6Editor scoreCheck price on Amazon

Hailege ENC28J60

ENC28J60 Chip

25MHZ Crystal

HR911105A Isolation

MCU Compatible

Hailege offers a reliable ENC28J60 module with strong user ratings. It includes the same 25MHZ crystal and isolation transformer found in similar brands.

Pros

• ENC28J60 Chip
• 25MHZ Crystal
• HR911105A Isolation
• High rating
• Low cost

Cons

• Standard speed
• Not full duplex

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This module supports a wide range of MCUs like AVR and LPC making it versatile for legacy projects. The isolation transformer provides essential protection against electrical noise.

It is a solid budget option for projects that do not require high throughput. The 4.6 rating reflects consistent performance and good quality control.

Choose this for cost-effective networking where speed is secondary. It is perfect for simple status reports or sensor telemetry.

Quality Control

Strong ratings suggest Hailege maintains consistent manufacturing standards.

Broad Compatibility

Supports many MCU families making it a flexible spare option.

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

Selecting the right module depends on your microcontroller's voltage logic speed needs and budget constraints.

Chipset Type

W5500 modules offer more sockets and memory than older W5100 or ENC28J60 chips. Choose W5500 for heavy traffic and W28J60 for simple low cost needs.

For complex apps pick W5500 for its speed and buffer capacity.

Voltage Levels

Ensure the module matches your board logic. Some need 3.3V only while others support 5V input or I/O tolerance.

Check if your MCU is 3.3V or 5V before wiring.

Power Supply

Ethernet chips draw significant current often over 200mA. Ensure your supply can handle peaks without brownouts.

Use a dedicated regulator to avoid resets.

Physical Size

Modules vary from compact SPI boards to full shields. Consider available space on your PCB for fit.

Use compact modules for custom boards.

Socket Count

Modules like W5500 support up to 8 sockets for multi-client tasks. ENC28J60 typically supports fewer concurrent connections.

Match sockets to your network concurrency needs.

Protocol Support

Check if the module supports TCP UDP and IPv4 natively in hardware. Software stacks add overhead and complexity.

Prefer hardware stacks for reliability.

SPI Speed

Higher SPI frequencies allow faster data transfer. Standard modes may limit throughput for streaming apps.

Select modules with higher SPI rates.

Bundle Size

Purchasing packs like 5pcs reduces cost per unit and shipping. Useful for multiple devices or spares.

Buy in bulk if deploying many nodes.

How to Use and Care for Your Arduino Lan Ethernet Module

Connect the module to your microcontroller's SPI pins MISO MOSI and SCK plus CS and RST. Verify power and ground connections before applying voltage.

Install a library compatible with your chipset like SPI Ethernet or UIPEthernet. Update the MAC and IP settings in your code before uploading.

Keep the module away from moisture and high heat. Check cable connections periodically to ensure the RJ45 port stays secure during operation.

Frequently Asked Questions

Final Thoughts on Choosing the Best Arduino Lan Ethernet Module

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