Amazon.com: Ximimark AVR ISP Shield Burning Burn Bootloader Programmer for Arduino UNO R3 : Electronics
One Set UNO R3 CH340G+MEGA328P Chip 16Mhz for Arduino UNO R3 Development Board + USB Cable: Amazon.com: Industrial & Scientific
![Amazon.com: ARDUINO MEGA 2560 REV3 [A000067] : Electronics](https://images-na.ssl-images-amazon.com/images/I/71z22cRPeeL._AC_UL600_SR600,600_.jpg "Amazon.com: ARDUINO MEGA 2560 REV3 [A000067] : Electronics")
Amazon.com: ARDUINO MEGA 2560 REV3 [A000067] : Electronics
Amazon.com: Gikfun Uno R3 Case Enclosure Transparent Clear Computer Box Compatible with Arduino UNO R3 EK1642 : Electronics
Amazon.com: ELEGOO UNO R3 Board ATmega328P with USB Cable(Arduino-Compatible) for Arduino : Electronics
SunFounder Controller Board Compatible with Arduino UNO R3 ATMEGA328P ATMEGA16U2
![Amazon.com: Arduino UNO SMD REV3 [A000073] : Electronics](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/61nFCzNYYcL._AC_UF894,1000_QL80_.jpg "Amazon.com: Arduino UNO SMD REV3 [A000073] : Electronics")
Amazon.com: Arduino UNO SMD REV3 [A000073] : Electronics
Amazon.com: HiLetgo 3pcs Pro Mini Atmega328P 5V/16M Replace ATmega128 Pro Mini Atmega328 328P DC5V 16M for Arduino : Electronics
Amazon.com: ARDUINO A000066 Uno R3 DIP Edition, 1.5" : Electronics
Amazon.com: ELEGOO Nano Board CH 340/ATmega+328P Without USB Cable, Compatible with Arduino Nano V3.0 (Nano x 3 Without Cable) : Electronics
flashtree 10pcs Atmega328P-PU Atmega328p Microcontroller with Uno R3 Bootloader DIP28 : Industrial & Scientific - Amazon.com
![Arduino UNO REV3 [A000066]](https://m.media-amazon.com/images/I/61AvdQOxFzL.jpg "Arduino UNO REV3 [A000066]")
Arduino UNO REV3 [A000066]
![Arduino UNO REV3 [A000066]](https://m.media-amazon.com/images/I/71z22cRPeeL._AC_UF894,1000_QL80_.jpg "Arduino UNO REV3 [A000066]")
Arduino UNO REV3 [A000066]
Amazon.com: OSOYOO Pro Micro ATmega32U4 5V/16MHz Module Board with 2 Row pin Header Replace with ATmega328 Pro Mini for Arduino : Electronics
Amazon.com: ELEGOO UNO R3 Board ATmega328P with USB Cable(Arduino-Compatible) for Arduino : Electronics
SparkFun Pro Mini ATmega328-5V/16MHz Development Board Compatible with Arduino Boards and IDE
NEW UNO R3 ATmega328P CH340 Mini USB Board for Compatible-Arduino - - Amazon .com
CANADUINO 2 x Atmega328P-PU Replacement Chip for Arduino UNO R3 - Bootloader
![Arduino UNO REV3 [A000066]](https://m.media-amazon.com/images/I/51Ci8gnvlAL.jpg "Arduino UNO REV3 [A000066]")
Arduino UNO REV3 [A000066]
Amazon.com: Arduino Breadboard Basic Kit - ATMEGA328P-PU With Bootloader 16MHz Crystal : Toys & Games
Amazon.com: ELEGOO UNO R3 Board ATmega328P with USB Cable(Arduino-Compatible) for Arduino : Electronics
Amazon.com: HiLetgo 5pcs UNO R3 ATmega328P ATMEGA16U2 Enclosure Case Kits Transparent Acrylic Enclosure Case UNO Case Enclosure Box for Arduino UNO R3 with Screws and Install Instructions Pack of 5 : Electronics
CANADUINO 2 x Atmega328P-PU Replacement Chip for Arduino UNO R3 - Bootloader
Adafruit Metro 328 with Headers - ATmega328
![Arduino UNO REV3 [A000066]](https://m.media-amazon.com/images/I/71GsBev1grL.jpg "Arduino UNO REV3 [A000066]")