--- product_id: 51884928 title: "Ethernet W5100 Web Server SD Card Network Shield Expansion Board Module for Arduino" brand: "newzoll" price: "Bs.691" currency: BOB in_stock: true reviews_count: 2 url: https://www.desertcart.bo/products/51884928-ethernet-w5100-web-server-sd-card-network-shield-expansion-board store_origin: BO region: Bolivia --- # High-speed Ethernet 32KB buffer SD card slot Ethernet W5100 Web Server SD Card Network Shield Expansion Board Module for Arduino **Brand:** newzoll **Price:** Bs.691 **Availability:** ✅ In Stock ## Summary > 🚀 Elevate Your Arduino Game! ## Quick Answers - **What is this?** Ethernet W5100 Web Server SD Card Network Shield Expansion Board Module for Arduino by newzoll - **How much does it cost?** Bs.691 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.bo](https://www.desertcart.bo/products/51884928-ethernet-w5100-web-server-sd-card-network-shield-expansion-board) ## Best For - newzoll enthusiasts ## Why This Product - Trusted newzoll brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Robust Performance:** Experience seamless data transfer with a 32KB inner buffer, ensuring smooth operation. - • **Expand Your Horizons:** Easily integrate an SD card for enhanced storage and data management. - • **Unleash Connectivity:** Transform your Arduino into a powerful web server with lightning-fast Ethernet capabilities. - • **Quality You Can Trust:** Crafted with premium materials for durability and reliability in every project. - • **Future-Proof Your Projects:** Stay ahead of the curve with this essential expansion board for modern IoT applications. ## Overview The Ethernet W5100 Web Server SD Card Network Shield Expansion Board Module for Arduino is designed to enhance your projects with high-speed Ethernet connectivity, featuring a robust 32KB inner buffer and an SD card slot for expanded storage capabilities. Perfect for IoT enthusiasts and professionals alike, this module ensures reliable performance and quality. ## Description Description: The latest revision of the shield also includes a reset controller, to ensure that the W5100 Ethernet module is properly reset on power-up. Previous revisions of the shield were not compatible with the Mega and need to be manually reset after power-up. The reset button on the shield resets both the W5100 and the Arduino board. Arduino communicates with both the W5100 and SD card using the SPI bus (through the ICSP header). This is on digital pins 11, 12, and 13 on the Duemilanove and pins 50, 51, and 52 on the Mega. On both boards, pin 10 is used to select the W5100 and pin 4 for the SD card. These pins cannot be used for general i/o. On the Mega, the hardware SS pin, 53, is not used to select either the W5100 or the SD card, but it must be kept as an output or the SPI interface won't work. Note that because the W5100 and SD card share the SPI bus, only one can be active at a time. If you are using both peripherals in your program, this should be taken care of by the corresponding libraries. If you're not using one of the peripherals in your program, however, you'll need to explicitly deselect it. To do this with the SD card, set pin 4 as an output and write a high to it. For the W5100, set digital pin 10 as a high output. Features: RJ45 Ethernet port Support up to four simultaneous TCP/UDP connections Reset Switch Compatible with Arduino UNO, Duemilanove, and Mega Package Content: 1 pcs Ethernet Sheild Expansion Board ## Features - High speed Ethernet controller W5100 - SPI interface - 32 Kbytes inner buffer - SD card slot - Brand new and high quality ## Images ![Ethernet W5100 Web Server SD Card Network Shield Expansion Board Module for Arduino - Image 1](https://m.media-amazon.com/images/I/71ns7X-4o0L.jpg) ![Ethernet W5100 Web Server SD Card Network Shield Expansion Board Module for Arduino - Image 2](https://m.media-amazon.com/images/I/71YflPVFiHL.jpg) ![Ethernet W5100 Web Server SD Card Network Shield Expansion Board Module for Arduino - Image 3](https://m.media-amazon.com/images/I/71JdlIk0P2L.jpg) ![Ethernet W5100 Web Server SD Card Network Shield Expansion Board Module for Arduino - Image 4](https://m.media-amazon.com/images/I/61xjJxlPYIL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars works great *by W***Y on Reviewed in the United States on August 25, 2018* Works Great ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars Works Great *by D***. on Reviewed in the United States on December 26, 2021* Used it to set up a browser based system for a friend of mine. This board integrated well and worked as advertised. --- ## 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.bo/products/51884928-ethernet-w5100-web-server-sd-card-network-shield-expansion-board](https://www.desertcart.bo/products/51884928-ethernet-w5100-web-server-sd-card-network-shield-expansion-board) --- *Product available on Desertcart Bolivia* *Store origin: BO* *Last updated: 2026-05-07*