---
product_id: 27763963
title: "ELEGOO UNO R3 Board ATmega328P"
brand: "elegoo"
price: "12319 Ft"
currency: HUF
in_stock: null
reviews_count: 13
category: "Elegoo"
url: https://www.desertcart.hu/products/27763963-elegoo-uno-r3-board-atmega328p
store_origin: HU
region: Hungary
---

# 16U2 chip for faster USB transfer Full Arduino IDE compatibility ATmega328P MCU for reliable prototyping ELEGOO UNO R3 Board ATmega328P

**Brand:** elegoo
**Price:** 12319 Ft
**Availability:** ❌ Out of Stock

## Summary

> 🚀 Elevate your maker game with ELEGOO UNO R3 — where speed meets seamless coding!

## Quick Answers

- **What is this?** ELEGOO UNO R3 Board ATmega328P by elegoo
- **How much does it cost?** 12319 Ft with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/27763963-elegoo-uno-r3-board-atmega328p)

## Best For

- elegoo enthusiasts

## Why This Product

- Trusted elegoo brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision Female Headers:** Clear, labeled connectors make wiring effortless and error-proof.
- • **Pro-Grade ATmega328P Core:** Same microcontroller as official Arduino UNO for trusted performance.
- • **Blazing Fast USB Transfers:** Upgraded 16U2 chip ensures rapid, lag-free data communication.
- • **Compact & Lightweight Design:** Sleek 3.15x2.36 inch footprint fits perfectly in any workspace.
- • **Plug & Play Arduino IDE Ready:** Seamlessly integrates with Arduino IDE for instant coding flow.

## Overview

The ELEGOO UNO R3 Board is a high-quality Arduino-compatible development board featuring the reliable ATmega328P microcontroller and an upgraded 16U2 USB interface chip for faster data transfer. Fully compatible with the Arduino IDE and equipped with clearly labeled female headers, it offers an effortless prototyping experience. Lightweight and compact, it’s a top choice for both beginners and seasoned makers seeking OEM-level performance without the premium price.

## Description

desertcart.com: ELEGOO UNO R3 Board ATmega328P with USB Cable(Arduino-Compatible) for Arduino : Electronics

Review: inexpensive, works well, easy to use. - These are a great and inexpensive option for the arduino platform. These are easy to use. There are a ton of tutorials out there that will get you started right away. I use these to prototype as well as make complete projects. They have always performed well. I do not often do projects that use most or all of the pins, usually I use about half of them and have never had an issue with the board.
Review: Works as expected Mac OS 10.13.6 i7 Mac Mini - Five Stars This Arduino clone board worked perfectly for me right out of the box. No drama, no issues, no system software updates. Just upload the newest compatible version of Arduino with your OS. I am a reasonably experienced multi-platform computer user, but Mac is my preferred platform. For me, running Mac 10.13.6 High Sierra on a 2012 Mac Mini, Arduino 1.8.19 works flawlessly. AccelStepper, ezButton, and all the other popular libraries worked first time. The supplied USB cable was too short for my purposes, so I had to substitute a known working data plus power USB cable. Also, the device does not like being ported through hubs, though with the right hub it probably works fine. I just didn't bother. I did get one "device drawing too much USB current" alert from my Mac OS, but I have no idea why. It was just sitting there. I think it was a fluke or a momentary short or something as I had the board laid out on my desktop. Other than that, works like a charm. Accepts the XikenTec HCDC Shield. Not all clones are created equal. See my review of "another brand" of Uno clone, the very cheapest one currently on desertcart. I'm ordering another one of these Elegoo right now to replace that one, which I am sending back. The Elegoo branded Uno clone seems like a good compromise between clone pricing and OEM compatibility. Or, screw around loading drivers and fiddling with your OS for a day or two and save an additional five dollars. :-)

## Features

- Clear prints on the female header connector, more precise and easier to use the wire.
- The ELEGOO UNO R3 BOARD now uses an 16U2 instead of the ATMega8U2 chip. Faster transfer rates and more memory.
- Control using ATMEL ATMEGA+328P chip(the same with Arduino UNO R3)
- 100% compatible with the Arduino IDE and RoHS Compliant
- We have always cared about the customer experience and improve the product function details.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01EWOE0UU |
| Best Sellers Rank | #16 in Single Board Computers (Computers & Accessories) |
| Date First Available | April 28, 2016 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.96 ounces |
| Item model number | EL-CB-001 |
| Manufacturer | ELEGOO |
| Product Dimensions | 3.15 x 2.36 x 0.39 inches |

## Product Details

- **Brand:** ELEGOO
- **Connectivity Technology:** USB
- **Memory Storage Capacity:** 32 KB
- **Model Name:** ELEGOO UNO R3 Board
- **Ram Memory Installed Size:** 32 KB

## Images

![ELEGOO UNO R3 Board ATmega328P - Image 1](https://m.media-amazon.com/images/I/71cvvGHcMwL.jpg)

## Questions & Answers

**Q: Is this the same thing as an arduino?**
A: Arduino is just a specification for a microcontroller. Although there is an official "Arduino Brand" this model does 100% of what that model does for $5 less. I have a kit that connects every GPIO pin of Arduino, and it connected fine. So for all intents and purposes, this is "the same thing as an arduino."

**Q: Ordered two of these and get the same error message: avrdude: ser_open() : can't open device "\\.\COM4": the system cannot find the file specified.**
A: When this happens, I've fixed it by closing the Arduino IDE, unplugging my USB cable from the UNO, plugging it back in, and restarting the IDE.  (Save the file before closing the IDE, if desired.)  This has always corrected the issue for me, even when the IDE shows an Arduino on COM4 and it's selected yet still seems unavailable.

**Q: Does this use the CH340 ?**
A: No. And no. He wants to know the USB chip, not the MCU chip. The USB chip is a CP2021 or whatever, it isn't the CH340.

**Q: is the Elegoo compatible with the official Arduino program? (1.8.1 to be exact)**
A: While I have not updated to 1.8.1 yet, I have used it with previous versions with no issues, so I see no reason why it should not work with the latest. I have used 3rd party programs and libraries as well.

## Customer Reviews

### ⭐⭐⭐⭐⭐ inexpensive, works well, easy to use.
*by M***D on June 3, 2025*

These are a great and inexpensive option for the arduino platform. These are easy to use. There are a ton of tutorials out there that will get you started right away. I use these to prototype as well as make complete projects. They have always performed well. I do not often do projects that use most or all of the pins, usually I use about half of them and have never had an issue with the board.

### ⭐⭐⭐⭐⭐ Works as expected Mac OS 10.13.6 i7 Mac Mini
*by O***M on April 27, 2024*

Five Stars This Arduino clone board worked perfectly for me right out of the box. No drama, no issues, no system software updates. Just upload the newest compatible version of Arduino with your OS. I am a reasonably experienced multi-platform computer user, but Mac is my preferred platform. For me, running Mac 10.13.6 High Sierra on a 2012 Mac Mini, Arduino 1.8.19 works flawlessly. AccelStepper, ezButton, and all the other popular libraries worked first time. The supplied USB cable was too short for my purposes, so I had to substitute a known working data plus power USB cable. Also, the device does not like being ported through hubs, though with the right hub it probably works fine. I just didn't bother. I did get one "device drawing too much USB current" alert from my Mac OS, but I have no idea why. It was just sitting there. I think it was a fluke or a momentary short or something as I had the board laid out on my desktop. Other than that, works like a charm. Accepts the XikenTec HCDC Shield. Not all clones are created equal. See my review of "another brand" of Uno clone, the very cheapest one currently on Amazon. I'm ordering another one of these Elegoo right now to replace that one, which I am sending back. The Elegoo branded Uno clone seems like a good compromise between clone pricing and OEM compatibility. Or, screw around loading drivers and fiddling with your OS for a day or two and save an additional five dollars. :-)

### ⭐⭐⭐⭐⭐ Jetson Bolt Pro Speed Hack
*by W***S on January 15, 2026*

Worked perfectly for a small project I had.

## Frequently Bought Together

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-01-31*