---
product_id: 84706681
title: "MKR Zero Board [ABX00012] with SAMD21 Cortex-M0+ 32-Bit ARM MCU, Built-in SD Card Slot for Music Playback, 22 Digital I/O Pins, 12 PWM Outputs, 256KB Flash, 32KB SRAM, 3.3V Operating Voltage."
brand: "arduino"
price: "€ 60.77"
currency: EUR
in_stock: true
url: https://www.desertcart.nl/products/84706681-mkr-zero-board-abx00012-with-samd21-cortex-m0-32-bit
store_origin: NL
region: Netherlands
---

# 48 MHz ARM Cortex-M0+ CPU Built-in SD card slot for seamless music playback 22 Digital I/O pins + 12 PWM outputs MKR Zero Board [ABX00012] with SAMD21 Cortex-M0+ 32-Bit ARM MCU, Built-in SD Card Slot for Music Playback, 22 Digital I/O Pins, 12 PWM Outputs, 256KB Flash, 32KB SRAM, 3.3V Operating Voltage.

**Brand:** arduino
**Price:** € 60.77
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your DIY projects with the MKR Zero — where power meets portability!

## Quick Answers

- **What is this?** MKR Zero Board [ABX00012] with SAMD21 Cortex-M0+ 32-Bit ARM MCU, Built-in SD Card Slot for Music Playback, 22 Digital I/O Pins, 12 PWM Outputs, 256KB Flash, 32KB SRAM, 3.3V Operating Voltage. by arduino
- **How much does it cost?** € 60.77 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/84706681-mkr-zero-board-abx00012-with-samd21-cortex-m0-32-bit)

## Best For

- arduino enthusiasts

## Why This Product

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

## Key Features

- • **Onboard SD Card Slot:** Effortlessly play and manage music or data without extra hardware
- • **Powerhouse Processor:** 48 MHz 32-bit ARM Cortex-M0+ for smooth, advanced project execution
- • **Versatile I/O Arsenal:** 22 digital pins and 12 PWM outputs to fuel your creative tech ideas
- • **Flexible Power Options:** USB or rechargeable LiPo battery support for ultimate portability
- • **Safe & Efficient Power:** Runs on 3.3V with built-in protection for reliable, low-voltage operation

## Overview

The Arduino MKR Zero Board features a 48 MHz 32-bit ARM Cortex-M0+ processor, 256KB flash memory, and 32KB SRAM, designed for advanced embedded projects. It includes a built-in SD card slot for music playback, 22 digital I/O pins, 12 PWM outputs, and operates safely at 3.3V. Power it via USB or a rechargeable LiPo battery, making it perfect for both stationary and portable applications.

## Description

MKR Zero Board [ABX00012] with SAMD21 Cortex-M0+ 32-Bit ARM MCU, Built-in SD Card Slot for Music Playback, 22 Digital I/O Pins, 12 PWM Outputs, 256KB Flash, 32KB SRAM, 3.3V Operating Voltage.

## Features

- Powerful Performance: Features a 32-bit ARM Cortex-M0+ processor, perfect for learning and developing advanced projects.
- Built-in SD Card Slot: Play music and manage files easily with the onboard SD card reader—no extra hardware required.
- Versatile Input/Output Options: Includes 22 digital pins, multiple analog inputs, and PWM outputs, allowing for a wide range of projects.
- 3.3V Operation: Runs on 3.3V power, with built-in protection for safe use in various applications.
- Flexible Power Sources: Can be powered via USB or a rechargeable LiPo battery, offering flexibility for portable or stationary setups.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Processor | 48 MHz |
| RAM | SRAM |
| Wireless Type | Bluetooth |
| Brand | Arduino |
| Series | Arduino MKR Zero |
| Item model number | ABX00012 |
| Operating System | FreeRTOS |
| Item Weight | 0.635 ounces |
| Product Dimensions | 3.15 x 2.28 x 0.91 inches |
| Item Dimensions  LxWxH | 3.15 x 2.28 x 0.91 inches |
| Processor Brand | ARM |
| Number of Processors | 1 |
| Manufacturer | ARDUINO |
| ASIN | B077NBB23L |
| Is Discontinued By Manufacturer | No |
| Date First Available | August 1, 2018 |

## Product Details

- **Brand:** Arduino
- **Model Name:** Arduino MKR Zero
- **Ram Memory Installed Size:** 32 KB
- **Memory Storage Capacity:** 256 KB
- **CPU Speed:** 48 MHz

## Images

![MKR Zero Board [ABX00012] with SAMD21 Cortex-M0+ 32-Bit ARM MCU, Built-in SD Card Slot for Music Playback, 22 Digital I/O Pins, 12 PWM Outputs, 256KB Flash, 32KB SRAM, 3.3V Operating Voltage. - Image 1](https://m.media-amazon.com/images/I/612upqPcgVL.jpg)

## Questions & Answers

**Q: Is this functionally equivalent to an existing Arduino that's been around for a while?**
A: From a high level perspective, if you are programming the MKR Zero with the Arduino IDE then the answer is, more or less, yes. There are pins that can be programmed to do digitalWrite(), digitalRead(), analogWrite(), analogRead(), etc. (although the total number of available pins differ). 

However, from a low level perspective, the MKR Zero employs a different microelectronic chip than the Arduino Uno, which does make it different. The Arduino Uno utilizes the Atmega328 series, while the MKR Zero utilizes the SAMD21 series. In short, the Atmega328 is a simple computer architecture which ultimately makes it a quick, easy-to-use, option for embedded programmers. The SAMD21 architecture incorporates ARM Cortex-M series technology, which makes it significantly more powerful than the Atmega328 (in terms of capabilities), but it is more complicated to use. All in all, though, these low level considerations only matter if you are an embedded programmer that intends to program the device in a direct-register-access fashion. If you are just sticking with the Arduino IDE to program it, then you don't have to worry about this.

**Q: Does it come with a programming Cable?**
A: Does not include cable - can be programmed with a MicroUSB (fairly common) *Be sure you use a true USB cable which includes the signal wires, and not a USB charging only cable, which omits the signal wires.

**Q: Does it have a battery charging circuit on the board?**
A: This digikey (electronic parts distributor) explains that it does have a "charging circuit" on board (//www.digikey.com/en/product-highlight/a/arduino/mkrzero-with-headers)
"The battery voltage can also be monitored since a connection between the battery and the analog converter of the board exists and the board includes charge circuitry to easily recharge the LiPo from a 5 V source."
And it lists the features as:
Integrated battery management

## Frequently Bought Together

- Arduino MKR Zero Board [ABX00012] with SAMD21 Cortex-M0+ 32-Bit ARM MCU, Built-in SD Card Slot for Music Playback, 22 Digital I/O Pins, 12 PWM Outputs, 256KB Flash, 32KB SRAM, 3.3V Operating Voltage.
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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-27*