The Arduino Uno R3 with Cable is a microcontroller board based on the ATmega328

Arduino Uno R3 is a microcontroller board based on ATmega328P It has 14 digital input/output pins ,On Board LEDs: On/Off, L (PIN 13), TX, RX Analog I/O Pins: 6 Microcontroller Chip: ATmega328 Digital I/O Pins: 14 (datasheet)-an 8-bit microcontroller with 32KB of Flash memory and 2KB of RAM.

Arduino UNO R3 ATmega328P CH340 USB Microcontroller Board with Cable – Envistia Mall

Sintron] UNO R3 ATMEGA328P + USB Cable + Reference PDF Files for Ardu – Sintron Technology

Arduino Compatible R3 ATmega328P Arduino UNO board SMD With Cable - SriTu Hobby

Arduino Uno R3 ATmega328P Arduino Compatible - DIP (without cable) buy original

Arduino Uno R3 with USB Cable

Arduino UNO R3 with Cable - ATmega328 Microcontroller Board Based CPU

ATMEGA328 Uno R3 CH340 Arduino ATMEGA328P Microcontroller Board USB Cable

ZYLtech ATmega328P ATMEGA16U2 Compatible with UNO R3 for Arduino w/ USB Cable - ZYLtech Engineering, LLC

Make sure this fits by entering your model number. This board is your entry to the unique Arduino experience: great for learning the basics of how sensors and actuators work and an essential tool for your rapid prototyping needs. Arduino Uno is the most used and documented board in the world. Uno means one in Italian and was chosen to mark the release of Arduino Software IDE 1.0 now evolved to newer releases.