W5100 Ethernet Shield Module for Arduino UNO

This Ethernet Shield, based on the Wiznet W5100 Ethernet chip, provides an easy way to get your Arduino online.

It is compatible with Arduino Duemilanove (ATmega168 or ATmega328),  and can be used with the official Arduino Ethernet library.

The Wiznet W5100 provides a built-in network stack supporting both TCP and UDP protocols.

It fits all versions of Arduino main boards, including Duemilanove.