10pcs ATmega328P-PU DIP28 Microcontroller for Arduino Uno R3 Bootloader

TinkerBlock UNO R3 Starter Kit with 12 Plug-in Sensor Modules, ATmega328P, Ex...

Atmega328P-PU Atmega328P Chip for Arduino UNO R3 Bootloader (Pack of 10)

Atmega328P-PU Atmega328P Chip for Arduino UNO R3 Bootloader (Pack of 5)

MEGA 2560 PRO Embed CH340G/ATMEGA2560-16AU Pro Mega Module with Male Pinheader

3 PCS Pre-Soldered Pro Mini ATmega328P MCU 3.3V 8MHz Development Board