---
product_id: 246978303
title: "V4.0 Development Board for Arduino UNO R3 with USB Cable"
brand: "keyestudio"
price: "AR$39368"
currency: ARS
in_stock: true
reviews_count: 13
category: "Keyestudio"
url: https://www.desertcart.com.ar/products/246978303-v4-0-development-board-for-arduino-uno-r3-with-usb
store_origin: AR
region: Argentina
---

# 16 MHz quartz crystal clock speed for smooth processing Distinctive yellow-black design for easy pin identification CP2102 USB serial chip for seamless connectivity V4.0 Development Board for Arduino UNO R3 with USB Cable

**Brand:** keyestudio
**Price:** AR$39368
**Availability:** ✅ In Stock

## Summary

> 🚀 Code Bold, Build Brilliant: The Arduino Board That Means Business

## Quick Answers

- **What is this?** V4.0 Development Board for Arduino UNO R3 with USB Cable by keyestudio
- **How much does it cost?** AR$39368 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/246978303-v4-0-development-board-for-arduino-uno-r3-with-usb)

## Best For

- keyestudio enthusiasts

## Why This Product

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

## Key Features

- • **Eye-Catching Design:** Stand out in the maker crowd with a sleek yellow-black board that’s as functional as it is stylish.
- • **Ready for Any Setup:** Power via USB or AC adapter with built-in reset and ICSP headers for advanced programming.
- • **Versatile I/O Options:** 14 digital pins (6 PWM) plus 6 analog inputs give you endless prototyping possibilities.
- • **Speedy 16 MHz Performance:** Reliable 16 MHz quartz crystal ensures responsive and stable operation.
- • **Plug & Play USB Connectivity:** Effortlessly connect and power your projects with the included USB cable and CP2102 chip.

## Overview

The KEYESTUDIO V4.0 Development Board is a fully compatible Arduino UNO R3 clone featuring a CP2102 USB serial chip for easy PC connection, 14 digital I/O pins (6 PWM), 6 analog inputs, and a 16 MHz quartz crystal. Its unique yellow-black design enhances pin visibility, and it comes complete with a USB cable for immediate use. Ideal for professional makers and developers seeking reliable, stylish, and versatile prototyping hardware.

## Description

desertcart.com: KEYESTUDIO V4.0 Development Board for Arduino UNO R3 with USB Cable : Electronics

Review: Arduino Uno R3, on the cheap - Initially the Keyestudio board was not recognized on WIN10. After checking some of the reviews, and updating the CP2102 driver, it worked perfectly. Although the pin descriptions are written on the board, I would prefer if the pin descriptions were also written on the headers as well. All-in-all a great development board at a great price.
Review: Great Uno Board - A really nice arduino uno r3 copy. Works well and has a good build quality. No issues and worked straight away without any need to RTFM

## Features

- KEYESTUDIO V4.0 board is updated with CP2102 USB serial chip, fully compatible with arduino.
- 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz quartz crystal, a USB connection, a power jack, an ICSP headers and a reset button.
- This microcontroller can be used by connecting it to a computer with a USB cable or power it with an AC to DC adapter. Also, it comes with the USB cable.
- BEAUTIFUL LOOK & PACKAGING: cool yellow-black design which is a departure from the standard, dull, black boards, the yellow silk screen on black mask make it easy to read the pin labels
- Flash Memory: 32 KB (ATMEGA328P-PU) of which 0.5 KB used by bootloader

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08H1RB61B |
| Best Sellers Rank | #1,305 in Single Board Computers (Computers & Accessories) |
| Brand | KEYESTUDIO |
| Card Description | Dedicated |
| Color | Yellow |
| Computer Memory Type | DDR DRAM |
| Customer Reviews | 4.5 4.5 out of 5 stars (167) |
| Date First Available | August 31, 2020 |
| Item Weight | 2.46 ounces |
| Item model number | KE-0017 |
| Max Screen Resolution | 800x600 |
| Memory Speed | 16 MHz |
| Number of Processors | 1 |
| Operating System | Windows 10 |
| Package Dimensions | 4.45 x 3.46 x 1.06 inches |
| Processor | 5x86 |
| Processor Brand | no |
| RAM | 32 KB no |
| Screen Resolution | 800 × 600 |
| Series | KEYESTUDIO V4.0 Development Board |
| Standing screen display size | 2 Inches |
| Wireless Type | Infrared |

## Product Details

- **Brand:** KEYESTUDIO
- **CPU Model:** 5X86
- **Color:** Yellow
- **Graphics Card Description:** Dedicated
- **Memory Storage Capacity:** 32 KB
- **Model Name:** KEYESTUDIO V4.0 Development Board
- **Operating System:** Windows 10
- **Personal computer design type:** All in One
- **Screen Size:** 2 Inches
- **Specific Uses For Product:** Education

## Images

![V4.0 Development Board for Arduino UNO R3 with USB Cable - Image 1](https://m.media-amazon.com/images/I/61hr-NGYk4L.jpg)

## Questions & Answers

**Q: Does it support jtag? Ejtag?**
A: Nope.  Not much JTAG support in the lower-end Arduino world.

**Q: What drivers do I need to install to get this to work?**
A: Install the open source Arduino Development Environment software on your computer. These board are 100% compatible with the standard Arduino UNO R3. You should be able to compile and upload your software to this board with no additional drivers being needed. Silicon Labs does have the USB to UART drivers available on their website just in case you run into an issue with the USB communications. This board worked just fine on my computer, but I already use Silicon Labs USB bridges for my other work. I may already have had their drivers installed so I did not see any issues.

**Q: where i can boy motor shield and Led dot matrix 8 * 16 for KS0470 model?**
A: Amazon.  Search “Arduino Uno Motor Shield”. Again Amazon and search “MAX7219”.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Arduino Uno R3, on the cheap
*by J***K on December 4, 2024*

Initially the Keyestudio board was not recognized on WIN10. After checking some of the reviews, and updating the CP2102 driver, it worked perfectly. Although the pin descriptions are written on the board, I would prefer if the pin descriptions were also written on the headers as well. All-in-all a great development board at a great price.

### ⭐⭐⭐⭐⭐ Great Uno Board
*by J***S on August 31, 2025*

A really nice arduino uno r3 copy. Works well and has a good build quality. No issues and worked straight away without any need to RTFM

### ⭐⭐⭐⭐ Cheap and easy
*by N***O on January 19, 2026*

I bought this while ago great for testing and prototyping added it to my Mr.Cupcake from fnaf. 3D printed the shell added a servo shield and some servos BAHMM Awesome eye movement! granted the memory doesn't store a lot a movement as it is a micro processer but will do great as a cheat alternative!

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*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-03-14*