Ethernet Shield W5100

You can easily use this shield on an Arduino Uno (5V), Arduino Mega (5V), Arduino Due (3.3V), etc. You can connect a micro SD card to store files such as images. For example, these images can be incorporated into a website. There are different versions of the ethernet shield, the delivered version is the same as in the picture, with W5100 chip. This works with the standard Ethernet library from the Arduino software.

See the following page for more information: Arduino Ethernet Shield (note, this is a similar product)

Note: This ethernet shield draws relatively high power (~200mA). Keep in mind that you won't be able to connect as many accessories to the Arduino.