Ethernet Nano W5100 Ethernet Shield LAN Network Module Board Micro-SD Support TCP UDP for Arduino V3.0 R3 UNO Mega 2560 One: Amazon.com: Industrial & Scientific
ENC28J60 Mini Ethernet Shield LAN Network Module for Arduino Nano V3 S
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Nicholas Humfrey on X: "Got @Arduino Nano Ethernet shield in the post and it works with my IPv6 library, EtherSia: https://t.co/WJkjHQ6AIJ 😀 https://t.co/9su5OPLkit" / X
ENC28J60 Ethernet Shield for Arduino Nano — PMD Way