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Amazon.com: W5100 Ethernet Network Shield W5100 Ethernet Expansion Board with SD Card Slot for Arduino for UNO 2009 MEGA1280 MEGA2560 (All Versions) : Electronics
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SUQ Ethernet W5100 network expansion board SD card Shield for arduino with Mega 2560 R3 Mega2560 REV3 and usb cable|shield for arduino|shield cardarduino sd card - AliExpress
![SOLVED] MQTT gateway based on Arduino Uno - Uno compatible W5100 Ethernet shield - RFM69HW radio | MySensors Forum SOLVED] MQTT gateway based on Arduino Uno - Uno compatible W5100 Ethernet shield - RFM69HW radio | MySensors Forum](https://forum.mysensors.org/assets/uploads/files/1556721308551-arduino-ethernet-shield-pinout.png)