Amazon.com: MMOBIEL ATmega328P New Version UNO R3 Board with A16U2 Compatible with Arduino IDE Projects RoHS Compliant - Includes USB Cable : Electronics
UNO REV 4 Microcontroller Board - Arduino | Mouser
Arduino Uno - R3 SMD - DEV-11224 - SparkFun Electronics
Amazon.com: Arduino UNO WiFi REV2 [ABX00021] : Electronics
ATmega328P CH340 USB Microcontroller Board Arduino Compatible – Envistia Mall
Amazon.com: Arduino UNO SMD REV3 [A000073] : Electronics
high quality One set UNO R3 CH340G+MEGA328P Chip 16Mhz For Arduino UNO R3 Development board + USB CABLE - AliExpress
Arduino Uno Rev3
Arduino UNO Rev 3: high-resolution pinout, datasheet, and specs – Renzo Mischianti
Arduino Uno R3 Microcontroller | Actuator Controls