10pcs atmega328 atmega328p-pu dip28 with pre-uno R3 bootloader

yddmyo Atmega328P-PU Atmega328P Replacement Chip for Arduino UNO R3 Bootloade...

3 PCS Black Gold UNO R3 Development Board ATmega328P TypeC Microcontroller

Leonardo R3 Microcontroller Development Board with USB Cable Kit for Arduino ...

Arduino UNO Q Snap-fit slim case w/ wall mount

2pcs ATmega328P CH340 Development Board Compatible with Arduino UNO R3 Board ...

8Pcs for Nano V3.0 ATmega328P Nano Board CH340 5V 16M Micro Microcontroller B...

Black Plastic Enclosure Protective Case for Arduino UNO R3 Compatible