This Ethernet shield has built-in WizNet W5100 TCP/IP micro processor. It can be connected to via long-pin female header. Users can easily connect this shield to netword via Ethernet library sketch in IDE. This shield supports connection of four sockets at the same time.
     
      In addition, the R3 version has been added with 1.0 standard version output ports comprised of four extra ports, two of them located beside ARFF, another two located beside RESET.
     
      Plus, this shield carries micro-SD card plot and has network storage function. It is fully compatible with duemilanove, R3 and series. It reserves PoE function.