The Arduino Ethernet Rev3 with PoE is a microcontroller board based on the ATmega328, the ethernet controller WIZNET 5100 and can be powered by PoE module.
The Arduino M0 Pro represents a powerful 32-bit extension of the Arduino UNO platform, The Arduino M0 Pro is powered by Atmel’s SAMD21 MCU, a 32-bit ARM Cortex M0 core.
The Arduino Uno R3 is a microcontroller board based on the ATmega328. It has 14 digital input/output pins (of which 6 can be used as PWM outputs) and 6 analog inputs.
Arduino Yun Mini is a breadboard PCB developed with ATmega 32u4 MCU and QCA MIPS 24K SoC CPU, Qualcomm Atheros CPU supports a Linux distribution named Linino.