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In this guide
Choosing the right Arduino Lan Ethernet Module is essential for creating connected projects that communicate over wired networks. A good module offers stable TCP IP support, easy SPI integration, and reliable PHY performance for IoT devices.
We evaluated ten real products based on their chipset capabilities, voltage compatibility, and user feedback. Our list covers W5500 W5100 and ENC28J60 modules suitable for Arduino AVR and STM32 development boards.
Each pick shows key specs and real-world performance notes to help you select the best fit. Please note that product availability and pricing may change over time on retailer platforms.
Top 3 Picks for Best Arduino Lan Ethernet Module
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Top 10 Best Arduino Lan Ethernet Module in 2026 Compared
The following table provides a side by side overview of all ten Ethernet modules including their core chipsets, voltage needs, and key network capabilities for quick comparison.
1. HiLetgo 2pcs W5500 Ethernet LAN Network Module – Best Overall for Multi Socket IoT
This HiLetgo module features the W5500 chip with strong TCP IP support for Arduino and STM32 systems. It earns high marks for supporting eight sockets and offering 32KB of internal buffer memory for smooth data flow.
Pros
- Supports 8 independent sockets
- Wake on LAN over UDP
- Internal 32KB TX RX buffers
- High speed SPI interface
- Compatible with 51 and STM32
Cons
- Requires stable 3.3V supply
- Pin header soldering needed
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The W5500 chip handles network stacks in hardware which reduces load on your microcontroller. You get Wake on LAN support over UDP and a high speed SPI bus for real time control tasks in embedded applications.
Some users note that the module needs a stable 3.3V supply to avoid glitches during transmission. Also the pin headers may need soldering for secure connections in vibration prone setups.
Buy this if you need reliable multi connection networking for IoT projects. It is an excellent choice for developers who value hardware TCP offload and flexible socket management in small form factors.
Hardware TCP Offload Benefits
The integrated TCP stack lets your microcontroller focus on logic while the module handles packets and connections automatically.
Multi Socket Versatility
Eight sockets allow concurrent server and client roles so you can manage multiple devices on the same board.
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2. HiLetgo W5500 SPI to LAN Ethernet Network Module – Best Value for Beginners
This HiLetgo W5500 module offers a cost effective entry into stable Ethernet networking. Its TTL level SPI interface and 3.3V power mode make it straightforward to integrate with common development boards.
Pros
- Affordable W5500 implementation
- 3.3V external power mode
- TTL level 3.3V SPI interface
- Clear TCP IP support
- Works with Arduino and STM32
Cons
- Power current must exceed 200mA
- Basic PCB without mounting holes
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The W5500 chip ensures reliable TCP IP communication without needing complex software stacks. Users appreciate the clear interface design and the ability to run with 5V I/O tolerance for wider compatibility.
You must ensure your power supply delivers over 200mA current to maintain stability during active data transfers. The compact PCB lacks mounting holes so plan your fixings carefully in enclosed cases.
Choose this budget pick for prototyping and small scale projects. It delivers solid performance for the price and supports both Arduino and STM32 interfaces seamlessly.
Power Requirements
Ensure your 3.3V supply provides at least 200mA current to prevent drops during high traffic network activity.
Interface Compatibility
The TTL SPI interface works directly with most 3.3V logic microcontrollers without extra level shifters.
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3. ACEIRMC W5500 SPI to LAN Ethernet Network Module – Best for Stable Power
The ACEIRMC W5500 module emphasizes power stability and compact layout for professional projects. It features a dedicated external 3.3V power mode and a clean PCB design to fit tight spaces.
Pros
- Stable 3.3V power supply design
- 23 by 25 mm compact PCB
- TTL level SPI interface
- TCP IP STM32 support
- Suitable for Arduino boards
Cons
- Soldered headers on some units
- Requires careful layout planning
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Users value the consistent voltage regulation and the high speed SPI interface which reduces latency in data exchange. The TCP IP stack supports STM32 and Arduino platforms effectively for varied applications.
The compact 23 by 25 mm footprint is useful for dense boards but may require custom mounting. Ensure your current capacity exceeds 200mA to keep the module stable under load.
Opt for this module when reliability and space efficiency matter most. It balances premium build quality with strong networking performance for embedded and IoT use cases.
Power Stability
The design ensures continuous stable 3.3V supply to avoid network interruptions during sustained data transfers.
Compact Form Factor
The small PCB size allows integration into space constrained enclosures without sacrificing connectivity.
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4. 2-Pack W5500 Ethernet LAN Module SPI 3.3V5V – Best for Dual Device Kits
This 2 Pack W5500 module set offers robust hardware TCP IP and Wake on LAN features in a small module. It is aimed at builders needing two units for paired devices or redundancy.
Pros
- Integrated TCP UDP ICMP IPv4 stack
- 32KB TX RX buffers included
- Wake-on-LAN via UDP support
- Dual voltage 3.3V core with 5V I/O
- 80MHz SPI speed support
Cons
- Low customer rating indicates issues
- Quality control may vary
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The embedded 10 100Mbps PHY with auto-negotiation simplifies cabling and ensures full duplex operation. SPI modes 0 and 3 are supported at 80MHz for real-time control in industrial scenarios.
Current reviews show reliability concerns which may stem from component variance. It is wise to test units thoroughly before finalizing large deployments or critical systems.
Consider this for cost effective dual setups if you can verify quality. It delivers strong feature coverage but check units carefully to avoid early failures.
Hardware TCP Stack
Integrated protocols offload network processing so your microcontroller focuses on application logic and tasks.
Industrial Grade PHY
The embedded PHY supports auto-negotiation for stable connections across different network conditions.
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5. DEVMO W5100 Ethernet Network Shield LAN – Best Shield with SD Slot
The DEVMO Ethernet shield uses the classic W5100 chip to provide TCP and UDP connectivity in a stackable form. An SD card slot adds local storage for web servers or logging.
Pros
- Wiznet W5100 network stack
- Standard RJ45 Ethernet jack
- SD card slot included
- Compatible with UNO MEGA boards
- Simple plug and play setup
Cons
- Older W5100 chipset
- Taller profile blocks headers
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Users find it simple to connect via RJ45 cables and mount on UNO R3 or MEGA2560 boards. The integrated stack enables quick internet access without complex libraries.
The W5100 is slower than modern W5500 chips and the shield height can block nearby pins. Some users report inconsistent performance under high load or long cable runs.
Pick this shield if you need a plug and play solution with storage. It works well for basic web servers but consider newer modules for higher performance needs.
SD Card Integration
The built-in SD slot allows local file serving for web pages or data logging without external peripherals.
Shield Stackability
Designed to stack directly on Arduino boards for easy expansion without soldering custom traces.
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6. HiLetgo ENC28J60 Ethernet LAN Network Module – Best for Legacy AVR
This HiLetgo ENC28J60 module provides a low cost Ethernet option for AVR and STM32 boards with SPI. It includes a 25MHz crystal and HR911105A isolation transformer for stable connections.
Pros
- ENC28J60 main chip
- 25MHz crystal oscillator
- RJ45 HR911105A isolation
- 3.3V power supply
- Compatible with AVR and LPC
Cons
- Slower SPI clock speed
- No hardware TCP stack
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Users appreciate the simple 3.3V power requirement and broad MCU compatibility. The module works well for small data exchanges where high bandwidth is not critical.
Lack of hardware TCP stack increases microcontroller load. SPI speed is limited compared to W5500 which may slow heavy data streams or frequent packets.
Use this for basic AVR projects or legacy systems where budget and simplicity matter most. It remains a common choice for hobbyist Ethernet add-ons.
Crystal Stability
The onboard 25MHz crystal ensures consistent timing for reliable SPI communication with the host MCU.
Isolation Transformer
HR911105A isolation protects the board from ground loops and Ethernet noise during operation.
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7. ACEIRMC 5pcs ENC28J60 Ethernet LAN Network Module – Best Bulk Pack
This five pack ACEIRMC ENC28J60 modules offers great value for multi project deployments. Each unit features the ENC28J60 chip with 25MHz crystal and RJ45 isolation for solid connectivity.
Pros
- Five piece cost effective pack
- IEEE 802.3 compatible
- ENC28J60 main chip
- 25MHz crystal on board
- 3.3V power interface
Cons
- No hardware TCP stack
- Limited bandwidth compared to W5500
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Users highlight the high rating and reliable performance across AVR and STM32 systems. The IEEE 802.3 compliance ensures basic Ethernet standards are met for interoperability.
SPI throughput is lower than modern hardware TCP stacks. Expect to manage more protocol details in your code when handling complex connections or high frequency updates.
Buy this bulk pack for classrooms or prototyping needs where cost is key. It provides dependable Ethernet access for multiple boards at a low per unit price.
Bulk Value
The five piece pack reduces per module cost and ensures spares are available for ongoing development.
Standard Compliance
IEEE 802.3 support guarantees basic compatibility with standard Ethernet switches and routers.
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8. W5500 Ethernet Module TCP IP Network Module – Best for ESP32
This W5500 module targets ESP32 and ESP8266 users seeking wired Ethernet stability. It features a full size RJ45 port and works with 5V or 3.3V logic levels for flexible design.
Pros
- Works with ESP32 and ESP8266
- Full size RJ45 port
- SPI interface for simple integration
- Supports TCP and UDP
- 5V or 3.3V microcontrollers
Cons
- Single piece only
- Basic documentation online
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High rating reflects reliable TCP and UDP support and simple SPI integration. Tutorials are available online to ease setup for IoT and educational projects.
The package includes just one piece so plan accordingly for multiple units. Documentation is minimal so expect to rely on community resources for code examples.
Choose this for ESP32 projects needing a stable wired link. Its compatibility and high rating make it a trustworthy option for IoT implementations.
ESP Compatibility
Optimized for ESP32 and ESP8266 boards with flexible voltage support for wide developer adoption.
Simple Integration
SPI interface and standard RJ45 connector make physical and logical setup straightforward.
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9. 2PCS LAN8720 Ethernet Board High Performance – Best for High Performance PHY
This LAN8720 board features a high performance PHY for 10 100 Mbps Ethernet with Auto-MDIX support. It offers low power operation ideal for embedded web servers using 3.3V supply.
Pros
- High performance PHY transceiver
- 10 100 Mbps speeds
- Auto-MDIX support
- Low power design
- 3.3V single supply
Cons
- Needs external MAC controller
- More complex to integrate
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Users note the flexible power management and voltage IO range from 1.6V to 3.6V for broad compatibility. It suits applications needing a dedicated PHY with clean signal handling.
Integration requires an external MAC or microcontroller with MAC support which adds complexity. Documentation is limited so expect more engineering effort than plug and play modules.
Select this board when you need a robust PHY for custom MAC designs. It excels in performance but suits experienced users comfortable with detailed hardware setup.
Auto MDIX Feature
Auto-MDIX simplifies cabling by automatically configuring crossover and straight-through connections.
Low Power Design
Ultra low power features help maintain battery or thermal budgets in embedded server systems.
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10. Hailege ENC28J60 Ethernet LAN Network Module – Best for Low Power
This Hailege module delivers the ENC28J60 chip in a DIP28 package with reliable 25MHz crystal and HR911105A isolation. It suits AVR and STM32 users seeking a compact Ethernet add-on.
Pros
- DIP28 ENC28J60 package
- 25MHz crystal on board
- HR911105A isolation transformer
- Compatible with AVR and LPC
- 3.3V power requirement
Cons
- No hardware TCP stack
- Basic SPI speed
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The 3.3V power requirement fits well with many microcontrollers and reduces external regulator needs. Users value the solid build and consistent performance across varied environments.
Without a hardware TCP stack the microcontroller handles more protocol processing. SPI speed is adequate for low bandwidth apps but not high throughput streams.
Use this module for low power projects where simplicity matters. It provides a dependable Ethernet link for AVR and STM32 boards at a reasonable price.
DIP28 Package
The DIP28 layout simplifies prototyping on breadboards or custom PCBs without custom adapters.
Power Efficiency
3.3V power design minimizes energy use for battery operated or thermal sensitive setups.
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Buying Guide – How to Choose the Best Arduino Lan Ethernet Module
Selecting the right Ethernet module involves evaluating chipset capabilities power requirements and physical fit for your project needs.
Chipset and TCP Support
Modules with hardware TCP stacks like W5500 or W5100 offload network processing from your microcontroller. This leads to faster response times and simpler code for handling connections and packets.
Choose a hardware TCP module for complex IoT apps where reliability and performance are key.
Voltage Compatibility
Most modules operate at 3.3V logic with 5V I/O tolerance. Ensure your microcontroller matches these levels to avoid damaging the module or MCU.
Check for explicit 3.3V and 5V support notes in product specs before purchasing.
SPI Interface Speed
SPI clock rates vary across modules. Faster SPI supports higher bandwidth and more frequent data exchanges without bottlenecks.
Select modules with high speed SPI for real time or streaming applications.
Socket and Connection Limits
W5500 modules support up to eight simultaneous sockets enabling multi client or server connections on one board.
Ensure the socket count meets your project needs for concurrent data sessions.
Physical Form Factor
Shield formats stack on boards but add height. Modular boards fit inside enclosures better and offer more design flexibility.
Measure your available space and decide between shield or breakout module style.
Power Supply Needs
Stable 3.3V power supply current above 200mA is critical for sustained Ethernet traffic. Use regulators with sufficient capacity to avoid brownouts.
Verify your power system meets the module's current requirements.
PHY and Cable Support
Quality RJ45 ports with isolation transformers protect your board from electrical noise. Auto-MDIX support simplifies cable connections without crossover needs.
Look for modules with HR911105A isolation or similar protection for reliability.
Software and Libraries
Popular chipsets have mature Arduino libraries and community support which speeds up development and troubleshooting.
Check for available code examples and documentation before finalizing your choice.
How to Use and Care for Your Arduino Lan Ethernet Module
Connect the module's SPI pins to your microcontroller's MOSI MISO CLK and CS pins using correct voltage levels. Ensure ground lines are shared securely to prevent noise issues.
Install the appropriate Ethernet library for your chipset such as Ethernet or W5500. Configure IP address or DHCP settings before testing network connectivity with ping requests.
Keep the module in a dry cool environment to protect components from heat and moisture. Use strain relief on cables to prevent disconnections or physical stress over time.
Frequently Asked Questions
What is the difference between W5500 and ENC28J60 modules?
W5500 modules include a hardware TCP stack and support more sockets and faster SPI. ENC28J60 is older and simpler without hardware TCP offload making it less capable for complex tasks.
Do these modules work with 5V Arduino boards?
Many modules have 5V I/O tolerance but run on 3.3V logic. Check product details for voltage specs and use level shifters if required by your board.
Can I use these modules for web servers?
Yes modules with TCP support can host small web pages. Ensure your MCU has enough flash and RAM to serve content along with networking code.
How do I set a static IP on the module?
Use the Ethernet library to assign a static IP during setup. Define subnet mask gateway and DNS before connecting to the network for consistent routing.
What cable type is needed for these modules?
Standard RJ45 Ethernet cables with Cat5 or higher work. Use cables with proper twist and shielding to avoid interference in noisy environments.
Are these modules suitable for battery powered projects?
ENC28J60 modules are lower power than W5500. Consider sleep modes and low duty cycles to conserve energy in battery operated setups.
Can I use multiple Ethernet modules on one board?
Yes if you assign unique chip select pins and manage SPI carefully. Each module needs distinct configuration and physical wiring to avoid conflicts.
How do I update firmware or software on the module?
These modules do not need firmware updates. Your microcontroller runs the networking stack and code so update sketches on the MCU instead.
Final Thoughts on Choosing the Best Arduino Lan Ethernet Module
The W5500 modules lead for hardware TCP performance and socket flexibility making them top picks for modern IoT and embedded networks.
Prioritize modules with stable power design clear documentation and voltage compatibility for your microcontroller to reduce integration headaches.
Always verify current pricing and availability before ordering since supply can change quickly across online platforms.