Specification:

• With this Ethernet Shield, your Arduino board can be used to connect to internet.
• Can be used as server or client.
• Directly plug puzzle board, no soldering required.
• Controller: W5100.
• This is the latest version of the Ethernet Shield.
• This Arduino Ethernet Shield which is based on the Wiznet W5100 Ethernet Chip gives you an easy way to get your Arduino Online.
• It is directly supported by Arduino official Ethernet Library.
• It adds a micro-SD card slot, which can be used to store files for serving over the network.
• It is compatible with the Arduino Duemilanove (168 or 328), Uno as well as Mega (1280/2560) and can be accessed using the SD library.
• The Wiznet W5100 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.
• Fits all version of Arduino Main board,2009,UNO, mega 1280, mega 2560.
• Size: 7cm x 5.4cm x 2.4cm - 2.76inch x 2.12inch x 0.94inch.
• MAC address: 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }