Arduino UNO R4 WiFi Development Board - DFRobot

Arduino DUE - An Arduino Microcontroller Board - DFRobot

Arduino® UNO R4 WiFi — Arduino Official Store

Arduino UNO R4 — Arduino Official Store

Arduino UNO R4 Minima Development Board Arm cortex M4 48MHz 32KB/256KB TYPE-C CAN 12 bit Analog DAC 3x faster than R3 - AliExpress

Arduino R4 WiFi - Micro Robotics

ESP32 Development Board 16MB Compatible With UNO R3 / UNO R4 Interface ESP-DO Robot Level Exam 56 Main Control Board For Arduino - AliExpress

Ethernet and PoE Shield for Arduino - W5500 Chipset

DFRobot Bluno (Bluetooth 4.0)

The UNO R4 was created with maximum compatibility in mind and keeps the same physical factor, compatibility with shields, and 5V operating voltage as its predecessor. The Renesas RA4M1 32-bit Cortex-M4 CPU, which powers the UNO R4, significantly increases processing speed, memory capacity, and functionality.

Arduino Uno R4 WiFi - ABX00087

Arduino UNO R4 WiFi Development Board - DFRobot

DFRobot Gravity: IO Expansion Shield for Arduino V7.1 : Electronics