Ethernet Shield W5100 For Arudino from DFRobot

The Arduino Ethernet Shield gives you an easy way to get your Arduino Online. It uses Arduino official Wzinet W5100 ethernet chip (not cheap ENC28J60) And it is directly supported by Arduino official Ethernet Library.
The Wzinet W5100 ethernet chip provides a network (IP) stack capable of both TCP and UDP. It supports up to four simultaneous socket connections. Use the Ethernet library to write sketches which connect to the internet using the shield.