• With this Ethernet Shield, on for 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 For Arduino Ethernet Shield which is based on the Wiznet W5100 Ethernet Chip gives you an easy way to get Online. • It is directly supported by for 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 for Arduino Duemilanove (168 or 328), Uno as well as Mega (1280/2560) and can be accessed using the SD library. • The Wiznet for 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 for 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. • address: 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED byte [] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }; Package Included: • 1 x 1Set UNO Shield Ethernet Shield W5100 Micro SD Wiznet Development Board for Arduino 168/328 UNO Mega 1280 Mega 2560 Freeshipping