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The W5100 ethernet shield allows your arduino to connect to the internet via an ethernet cable. The shield features a Micro SD card slot capable of storing files for serving over the network. The W5100 supports up to 4 simultaneous socket connections, and provide a network IP stack capable of TCP and UDP.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.