Description The Arduino Yun Shield is a shield which is perfect board for Arduino. It is designed to solve the internet connectivity and storage issue for Arduino board. Yun Shield can work with other Arduino board such as Uno, Duemilanove, and Mega etc. It can be applicable in various Arduino related projects and DIY projects which require various internet connections and more storage. Specifications: Name Arduino Yun Shield Architecture MIPS Operating Voltage 3.3V Ethernet 802.3 10/100Mbit/s WiFi 802.11b/g/n 2.4 GHz USB Type 2.0 Host Card Reader Micro-SD RAM 64 MB DDR2 Flash Memory 16 MB SRAM 2.5 KB EEPROM 1 KB Clock Speed 400 MHz Processor 400MHz, 24K MIPS