Arduino W5100 Ethernet Shield

 Arduino Ethernet Shield V1 allows an Arduino board to connect to the internet. It is based on the Wiznet W5100ethernet chip (datasheet). The Wiznet W5100 provides a network (IP) stack capable of both TCP and UDP. It supports up to four simultaneous socket connections. There is an onboard micro-SD card slot, which can be used to store files for serving over the network.

• Requires an Arduino board (not included) on foto only for information!!!
• Operating voltage 5V 
• Ethernet Controller: W5100 with internal 16K buffer
• Connection speed: 10/100Mb
• Connection with Arduino on SPI port