Arduino Uno R3 Development Board - Control Voltage

Open-source electronics prototyping platform

Arduino Uno R3 SMD Compatible Development Board – Aerokart India

Enhanced and improved, the Arduino UNO R4 Minima is armed with a powerful 32-bit microcontroller courtesy of Renesas. Brace yourself for increased processing power, expanded memory, and a whole new level of on-board peripherals. The best part? Compatibility with existing shields and accessories remains intact, and there's no need to make any changes to the standard form factor or 5 V operating voltage.

Arduino Uno R4 Minima - ABX00080

Arduino Uno - Wikipedia

Arduino UNO R4 WiFi Development Board - DFRobot

Keyestudio UNO R3 Motor PLUS Development Board For Arduino+USB Cable

SunFounder Uno R3 Control Board

Buy SMD Arduino UNO R3 with Cable Online in India – Robocraze

SunFounder Uno R3 Control Board - RobotShop

Arduino UNO R4 Minima Development Board - DFRobot