[Sintron]Ethernet Network Shield W5100 for Arduino UNO 328 Mega 2560 1280

Overview
The Arduino Ethernet Shield connects your Arduino to the internet in mere minutes. Just plug this module onto your Arduino board, connect it to your network with an RJ45 cable (not included) and follow a few simple instructions to start controlling your world through the internet. Allows you to connect your Arduino UNO 328 or Mega 2650 1280 to a network or the internet AND retrieve or store files on a Micro SD Card.

The module carries an onboard WIZnet W5100 Ethernet chip, which provides a network (IP) stack capable of both TCP and UDP, as well as a standard RJ45 Ethernet jack.

For more information here: Sample code, Ethernet library.

Features
(1) Wiznet W5100 ethernet chipset.
(2) TCP/UDP stack.
(3) Rev. 3 pinout with SDA/SCL/IOREF/extra pins.
(4) Supports 4 simultaneous socket connections.
(5) Houses a standard RJ45 ethernet cable jack.
(6) Has an onboard microSD card slot.
(7) LED indicators for Power, Link, Full Duplex, 100M connectivity, Tx/Rx, and Network Collisions.
(8) Reset button  resets both the W5100 and main Arduino / Freeduino motherboard.

Specifications

Ethernet library
 Arduino communicates with the shield using the SPI bus. This is on digital pins 11, 12, and 13 on the Uno and pins 50, 51, and 52 on the Mega. On both boards, pin 10 is used as SS. On the Mega, the hardware SS pin, 53, is not used to select the W5100, but it must be kept as an output or the SPI interface won't work.
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Arduino Uno R3 Pinout Diagram

please notice, this Arduino Uno R3 Board is not included, you can check here if you need it: [Sintron] UNO R3 ATMEGA328P + USB Cable + Reference PDF Files for Arduino's IDE

Package List
1 x Arduino Ethernet Shield w/MicroSD Card Reader

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