Ethernet Shield W5100 R3 for UNO Mega 2560 UNR R3 W5100 Development board
- With this Ethernet Shield, your uno r3 board can be used to connect to internet.
- Can be used as server or client.
- Directly plug puzzle board, no soldering required.
- It is directly supported by uno r3 official Ethernet Library.
- It adds a micro-SD card slot, which can be used to store files for serving over the network.