> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# W5100 Ethernet + SD Card Shield (Arduino Compatible)

**Type:** Product page · **SKU:** CE05307 · **Brand:** [Core Electronics](https://core-electronics.com.au/brands/core-electronics-australia)
**Page:** https://core-electronics.com.au/w5100-ethernet-sd-card-shield-arduino-compatible.html ([markdown](https://core-electronics.com.au/w5100-ethernet-sd-card-shield-arduino-compatible.html.md))

The Ethernet Shield for Arduino is based on the Wiznet W5100 and connects your Arduino-compatible board to the internet a few minutes. Simply plug this module onto board, connect it to your network with an RJ45 cable (not included) and follow a few simple instructions to start controlling your world through the internet.

## Pricing

- **Price:** $9.15 (inc GST) — $8.32 AUD, exc GST
- **Quantity discounts:** 10+ $7.49 (exc GST) · 50+ $7.07 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 10 today; more stock is typically available with a 8–12 day lead time.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=CE05307:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart.
- **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/CE05307:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.)
- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

The W5100 Ethernet Shield is based on the [Wiznet W5100](https://www.wiznet.io/product-item/w5100/) and connects your Arduino-compatible board to the internet a few minutes. Simply plug this module onto your board, connect it to your network with an RJ45 cable (not included) and follow a few simple instructions to start controlling your world through the internet.

- Requires an Arduino-compatible board (not included)
- Operating voltage 5V (supplied from the Arduino-compatible Board)
- Ethernet Controller: W5100 with internal 16K buffer
- Connection speed: 10/100Mb
- Connection with Arduino-compatible board on SPI port
 
**Downloads / Resources:**

- [Getting started with the ethernet shield](https://arduino.cc/en/Guide/ArduinoEthernetShield)
- [Ethernet library reference](https://arduino.cc/en/Reference/Ethernet)
- [SD library reference](https://www.arduino.cc/en/Reference/SD)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/d/e/device5_1000.jpg)