---
product_id: 365728479
title: "Adafruit ItsyBitsy nRF52840 Express - Bluetooth LE Ada 4481"
brand: "adafruit"
price: "HK$3"
currency: HKD
in_stock: true
reviews_count: 1
url: https://www.desertcart.hk/products/365728479-adafruit-itsybitsy-nrf52840-express-bluetooth-le-ada-4481
store_origin: HK
region: Hong Kong
---

# 64 MHz 32-bit Nordic processor 1.25 MB combined flash & RAM storage +8dBm Bluetooth LE output power Adafruit ItsyBitsy nRF52840 Express - Bluetooth LE Ada 4481

**Brand:** adafruit
**Price:** HK$3
**Availability:** ✅ In Stock

## Summary

> 🚀 Power your innovation with the ItsyBitsy nRF52840 — small board, huge possibilities!

## Quick Answers

- **What is this?** Adafruit ItsyBitsy nRF52840 Express - Bluetooth LE Ada 4481 by adafruit
- **How much does it cost?** HK$3 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/365728479-adafruit-itsybitsy-nrf52840-express-bluetooth-le-ada-4481)

## Best For

- adafruit enthusiasts

## Why This Product

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

## Key Features

- • **Certified for Global Use:** FCC, IC, and TELEC certifications mean your projects meet international wireless standards—no compromises.
- • **Compact Yet Mighty Form Factor:** Tiny 0.7 x 1.4 inch footprint fits perfectly into sleek, space-conscious designs.
- • **Blazing Fast 64 MHz Nordic Core:** Experience seamless multitasking with a powerful 32-bit processor built for next-gen IoT projects.
- • **Bluetooth LE with Boosted Range:** Stay connected with up to +8dBm output power, ensuring reliable wireless communication in any environment.
- • **Massive Memory for Complex Code:** Store and run your CircuitPython scripts effortlessly with 1024 KB flash, 256 KB RAM, plus 2 MB QSPI flash.

## Overview

The Adafruit ItsyBitsy nRF52840 Express is a compact, high-performance microcontroller board featuring a 64 MHz 32-bit Nordic processor, 1.25 MB combined flash and RAM, and a 2 MB QSPI flash for extensive code storage. It supports Bluetooth Low Energy with up to +8dBm output power and comes FCC, IC, and TELEC certified, making it ideal for professional-grade IoT and embedded projects requiring reliable wireless connectivity and efficient power management.

## Description



## Features

- 32-bit, 3.3V logic and power with power/enable pin
- 1024 KB flash, 256 KB RAM
- 2 MB QSPI FLASH chip for storing files and CircuitPython code storage.
- Up to +8dBm output power
- FCC / IC / TELEC certified module

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Processor | 64 MHz |
| RAM | LPDDR4 |
| Wireless Type | Bluetooth |
| Brand | Adafruit |
| Series | ItsyBitsy nRF52840 |
| Item model number | 4481 |
| Operating System | CircuitPython |
| Item Weight | 0.634 ounces |
| Product Dimensions | 0.7 x 1.4 x 0.2 inches |
| Item Dimensions  LxWxH | 0.7 x 1.4 x 0.2 inches |
| Processor Brand | Nordic |
| Number of Processors | 1 |
| Manufacturer | Adafruit |
| ASIN | B09H25NXPV |
| Date First Available | September 24, 2021 |

## Product Details

- **Brand:** Adafruit
- **Model Name:** ItsyBitsy nRF52840
- **Ram Memory Installed Size:** 256 KB
- **Memory Storage Capacity:** 1024 KB
- **CPU Speed:** 64 MHz

## Images

![Adafruit ItsyBitsy nRF52840 Express - Bluetooth LE Ada 4481 - Image 1](https://m.media-amazon.com/images/I/81MufVlHK-L.jpg)
![Adafruit ItsyBitsy nRF52840 Express - Bluetooth LE Ada 4481 - Image 2](https://m.media-amazon.com/images/I/81hZIGWbKoL.jpg)
![Adafruit ItsyBitsy nRF52840 Express - Bluetooth LE Ada 4481 - Image 3](https://m.media-amazon.com/images/I/610UQDTz6GL.jpg)
![Adafruit ItsyBitsy nRF52840 Express - Bluetooth LE Ada 4481 - Image 4](https://m.media-amazon.com/images/I/718qPDABeRL.jpg)
![Adafruit ItsyBitsy nRF52840 Express - Bluetooth LE Ada 4481 - Image 5](https://m.media-amazon.com/images/I/81Zh1mE5+lL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Very Nice
  

*by H***D on Reviewed in the United States on October 7, 2023*

Superb Product.  Just wished they were as clean as Seeed XIAO which integrated the whole assembly on one chip.  Seems it takes a very large investment to compete with the Chinese.  Nevertheless, this product works fine and the power consumption is competitive with XIAO.

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**Shop now:** [https://www.desertcart.hk/products/365728479-adafruit-itsybitsy-nrf52840-express-bluetooth-le-ada-4481](https://www.desertcart.hk/products/365728479-adafruit-itsybitsy-nrf52840-express-bluetooth-le-ada-4481)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-03-12*