Shield per Arduino - ETHERNET W5100 R3
Function: Allows your Arduino to connect to the Internet through an ethernet cable
Chip: Wiznet W5100 Ethernet Chip
Supported Arduino: board Compatible with the Arduino Duemilanove (168 or 328), Uno as well as Mega (1280/2560)
Network (IP) stack capable: TCP and UDP
Other feature: Micro SD card slot
Weight: 100g.