Arduino Mega 2560 R3 with ATmega16U2
Classic UNO R3 ATmega16U2/ATmega328P-PU (Arduino-compatible board)
Leonardo ETH with PoE - Leonardo Ethernet W5500 with PoE + Micro SD card reader/writer, compatible for Arduino Leonardo ETH
MEGA+WiFi R3 ATmega2560+ESP8266, flash 32MB, USB-TTL CH340G, Micro-USB
The RobotDyn SAMD21 M0 represents a powerful, 32-bit extension of the Arduino UNO platform. The board is powered by Atmel’s SAMD21 MCU, featuring a 32-bit ARM Cortex® M0 core.
UNO WiFi R3 ATmega328P ESP8266, 32Mb flash, USB-TTL CH340G, Micro-USB