Features:

• Can be used as server or client
• With this Ethernet Shield, your Arduino board can be used to connect to Internet
• Directly plug puzzle board, no soldering required
• Controller: W5100
• This is the last version of the Ethernet Shield
• This Arduino Ethernet Shield which is based on the Wizent W5100 Ethernet Chip
• 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: 2.76 x 2.12 x 0.94in (7 x 5.4 x 2.4cm)
• MAC address: 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }