---
product_id: 31896757
title: "KEYESTUDIO W5100 Ethernet Shield Without POE for Arduino R3 Mega 2560, Wiznet W5100 Ethernet Network Micro SD Card Slot for Arduino to Internet"
brand: "keyestudio"
price: "€ 2.85"
currency: EUR
in_stock: false
reviews_count: 8
url: https://www.desertcart.hr/products/31896757-keyestudio-w5100-ethernet-shield-without-poe-for-arduino-r3-mega
store_origin: HR
region: Croatia
---

# Arduino compatibility Ethernet connectivity Micro SD card slot KEYESTUDIO W5100 Ethernet Shield Without POE for Arduino R3 Mega 2560, Wiznet W5100 Ethernet Network Micro SD Card Slot for Arduino to Internet

**Brand:** keyestudio
**Price:** € 2.85
**Availability:** ❌ Out of Stock

## Summary

> 🚀 Elevate Your Arduino Experience!

## Quick Answers

- **What is this?** KEYESTUDIO W5100 Ethernet Shield Without POE for Arduino R3 Mega 2560, Wiznet W5100 Ethernet Network Micro SD Card Slot for Arduino to Internet by keyestudio
- **How much does it cost?** € 2.85 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/31896757-keyestudio-w5100-ethernet-shield-without-poe-for-arduino-r3-mega)

## Best For

- keyestudio enthusiasts

## Why This Product

- Trusted keyestudio brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **User-Friendly Setup:** Access online tutorials for quick and easy installation.
- • **Micro SD Card Support:** Store and serve files directly over the network.
- • **Seamless Internet Integration:** Transform your Arduino into a web server effortlessly.
- • **Official Library Compatibility:** Fully supported by the Arduino official Ethernet Library.
- • **Versatile Input/Output Control:** Read and write digital and analog signals with ease.

## Overview

The KEYESTUDIO W5100 Ethernet Shield is designed for Arduino R3 and Mega 2560, enabling seamless internet connectivity. With a micro SD card slot for file storage and compatibility with the official Arduino Ethernet Library, this shield allows users to create web servers and control inputs/outputs effortlessly. Ideal for makers and developers looking to enhance their projects with online capabilities.

## Description

Full description not available

## Features

- Please note: MAC addresses are not unique. keyestudio W5100 Ethernet Shield gives you an easy way to get your Arduino Online.
- It can turn your Arduino into a simple web server or use the Internet to read /write its digital and analog outputs/inputs.
- It is directly supported by Arduino official Ethernet Library. It also supports the read &write of mini SD card (TF card).
- Adds a micro-SD card slot, can be used to store files for serving over the network
- How to use: Search for "keyestudio wiki KS0156" in Google Chrome to get the wiki online tutorial for this product.

## Product Details

- **Brand:** KEYESTUDIO
- **Model Name:** W5100
- **Connectivity Technology:** Ethernet
- **Operating System:** Chrome,Mac
- **Compatible Devices:** Arduino boards (Arduino mega 2560, U&O R3)

## Images

![KEYESTUDIO W5100 Ethernet Shield Without POE for Arduino R3 Mega 2560, Wiznet W5100 Ethernet Network Micro SD Card Slot for Arduino to Internet - Image 1](https://m.media-amazon.com/images/I/71y5qm1WCBL.jpg)
![KEYESTUDIO W5100 Ethernet Shield Without POE for Arduino R3 Mega 2560, Wiznet W5100 Ethernet Network Micro SD Card Slot for Arduino to Internet - Image 2](https://m.media-amazon.com/images/I/61rdktihI+L.jpg)
![KEYESTUDIO W5100 Ethernet Shield Without POE for Arduino R3 Mega 2560, Wiznet W5100 Ethernet Network Micro SD Card Slot for Arduino to Internet - Image 3](https://m.media-amazon.com/images/I/61o9o7eOAWL.jpg)
![KEYESTUDIO W5100 Ethernet Shield Without POE for Arduino R3 Mega 2560, Wiznet W5100 Ethernet Network Micro SD Card Slot for Arduino to Internet - Image 4](https://m.media-amazon.com/images/I/61M2dKpGfAL.jpg)
![KEYESTUDIO W5100 Ethernet Shield Without POE for Arduino R3 Mega 2560, Wiznet W5100 Ethernet Network Micro SD Card Slot for Arduino to Internet - Image 5](https://m.media-amazon.com/images/I/712jmye4pCL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good product, good price, will buy again.
*by K***M on February 15, 2018*

Came bundled with the Keyestudio Uno R3 and both work perfectly. The printing on top of the board (pin numbers, etc.) are a little harder to read than on boards from another manufacturer, but a bright light and a magnifier helped. This is a good product at a good price and I will buy these again.

### ⭐⭐⭐⭐⭐ Very happy so far
*by A***W on October 13, 2021*

Used this to get an arduino talking to an industrial plc over modicon modbus tcp, possibilities are endless for custom sensors etc, description mentions that all these boards have the same Mac, if it causes me problems or I'm unable to change it will update and lower my review.

### ⭐⭐⭐⭐ Nice Ethernet shield for arduino
*by S***I on September 10, 2017*

keyestudio W5100 Ethernet Shield for Arduino came nicely packed without any damage. This ethernet shield will allow Arduino Mega 2560/ UNO R3 to connect to the internet. And this ethernet shield based on the Wiznet W5100 ethernet chip. Using the Ethernet library we can write sketches which connect to the internet using the shield.This ethernet shield contains a micro-SD Card slot which can be used to store files for serving over the network.

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.hr/products/31896757-keyestudio-w5100-ethernet-shield-without-poe-for-arduino-r3-mega](https://www.desertcart.hr/products/31896757-keyestudio-w5100-ethernet-shield-without-poe-for-arduino-r3-mega)

---

*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-24*