Atmega328 Programmer Shield for Arduino UNO - DIY Kit

Atmega328P Arduino Prototyping Prototype Shield ProtoShield With Mini Breadboard

Arduino Nano Screw Terminal Adapter

Pro Mini ATmega328 5V 16M Board Compatible For Arduino Nano

Mini USB Nano V3.0 ATmega328 5V 16M Micro-controller board DIY for Arduino FT232

NANO V3 wireless Atmega328P + nRF24L01 - Arduino compatible

5V MINI USB Nano V3.0 ATmega328P 16M Micro-controller Board Arduino

Mini USB Nano V3.0 CH340G ATmega328P 5V 16M Micro-Controller For Arduino M47