Ethernet Shield W5100 with micro SD card reader

Operates on 5 Volts (from your Arduino).
Ethernet controller: W5100 with 16K internal buffer.
Connection speed: 10 / 100Mb
Connection to your Arduino via SPI via the ICSP header.
With micro SD card slot to store files that you are served via the network.
Use the Ethernet library to write sketches.
Compatible with the Arduino Uno and Mega.
With 7 informative LEDs.

The Ethernet Shield W5100 is supplied without a network cable.