---
product_id: 456773685
title: "SparkFun Qwiic Mux Breakout - 8 Channel (TCA9548A)"
brand: "sparkfun"
price: "S$64"
currency: SGD
in_stock: false
reviews_count: 3
url: https://www.desertcart.sg/products/456773685-sparkfun-qwiic-mux-breakout-8-channel-tca9548a
store_origin: SG
region: Singapore
---

# 8-channel I2C multiplexing Compact 1mm pitch Qwiic JST connector 8 configurable I2C addresses SparkFun Qwiic Mux Breakout - 8 Channel (TCA9548A)

**Brand:** sparkfun
**Price:** S$64
**Availability:** ❌ Out of Stock

## Summary

> 🔗 Unlock Infinite I2C Possibilities — Because Your Sensors Deserve to Talk!

## Quick Answers

- **What is this?** SparkFun Qwiic Mux Breakout - 8 Channel (TCA9548A) by sparkfun
- **How much does it cost?** S$64 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/456773685-sparkfun-qwiic-mux-breakout-8-channel-tca9548a)

## Best For

- sparkfun enthusiasts

## Why This Product

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

## Key Features

- • **Robust & Reliable:** Wide operating voltage (1.65V-5.5V) and temperature range (-40°C to 85°C) for professional-grade stability.
- • **Plug & Play Simplicity:** Polarized Qwiic connectors ensure foolproof, space-saving connections—no soldering, no guesswork.
- • **Customizable Addressing:** Eight jumper-selectable I2C addresses let you stack multiple muxes on the same bus without a hitch.
- • **Perfect for Complex Builds:** Integrated pull-up resistors and compatibility with EspHome make advanced IoT projects effortless.
- • **Expand Your Sensor Universe:** Seamlessly connect up to 64 I2C devices with 8 multiplexed channels—no address conflicts, no limits.

## Overview

The SparkFun Qwiic Mux Breakout (TCA9548A) is an 8-channel I2C multiplexer designed to eliminate address conflicts by allowing multiple sensors with identical addresses to share a single bus. Featuring eight configurable addresses, it supports up to 64 devices on one connection. Its compact Qwiic JST connector ensures easy, error-proof integration, while its wide voltage and temperature tolerance make it ideal for demanding professional and IoT applications.

## Description

SparkFun Qwiic Mux Breakout - 8 Channel (TCA9548A) : desertcart.co.uk: Business, Industry & Science

Review: If you want to use more than one or two I2C devices, get this!
Review: Works great

## Features

- Do you have too many sensors with the same I2C address Put them on the SparkFun Qwiic Mux Breakout to get them all talking on the same bus!
- The Qwiic Mux also has eight configurable addresses of its own, allowing for up to 64 I2C buses on a connection. Also allows you to change the last three bits of the address byte, allowing for eight jumper selectable addresses if you happen to need to put more than one Qwiic Mux Breakout on the same I2C port.
- All Qwiic-enabled boards use a common 1mm pitch, 4-pin JST connector. This reduces the amount of required PCB space, and polarized connections mean you can’t hook it up wrong.
- Operating Voltage: 1.65V - 5.5V. Operating Temperature: -40 - 85 C. I2C Address: 0x70 (default) up to 0x77.
- International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08CHMCSX8 |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 296,820 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 425 in IO Modules |
| Customer Reviews | 4.5 4.5 out of 5 stars (21) |
| Date First Available | 7 July 2020 |
| Item Weight | 18 g |
| Item model number | BOB-16784 |
| Manufacturer | SparkFun Electronics |
| Part number | BOB-16784 |
| Product Dimensions | 3.7 x 5.6 x 0.5 cm; 18 g |

## Images

![SparkFun Qwiic Mux Breakout - 8 Channel (TCA9548A) - Image 1](https://m.media-amazon.com/images/I/51hl51FBkFL.jpg)
![SparkFun Qwiic Mux Breakout - 8 Channel (TCA9548A) - Image 2](https://m.media-amazon.com/images/I/61a8PuUQKJL.jpg)
![SparkFun Qwiic Mux Breakout - 8 Channel (TCA9548A) - Image 3](https://m.media-amazon.com/images/I/71+d23bvnfL.jpg)
![SparkFun Qwiic Mux Breakout - 8 Channel (TCA9548A) - Image 4](https://m.media-amazon.com/images/I/71j3m-iEiIL.jpg)
![SparkFun Qwiic Mux Breakout - 8 Channel (TCA9548A) - Image 5](https://m.media-amazon.com/images/I/81O2hkP6-YL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ If you want to use more than one or two I2C devices, get this!
*by P***S on 1 January 2025*



### ⭐⭐⭐⭐⭐ Works great
*by T***R on 2 October 2021*



### ⭐⭐⭐⭐ Plug the wired ends in by holding the board connector, not just the board
*by R***N on 23 November 2021*



## Frequently Bought Together

- SparkFun Qwiic Mux Breakout - 8 Channel (TCA9548A) - Easily Read Multiple sensors with The Same I2C Address Or Communicate with Multiple I2C Devices with Different addresses - Board only
- I2C Qwiic Cable Kit Stemma QT Wire for SparkFun Development Boards Sensor Board Breakout Breadboard 4 Pin Sh1.0 Connector
- SparkFun Qwiic Cable Kit Hook Up I2C Qwiic Development Boards in no time No Soldering Required Includes 10 Different Lengths Styles Breadboardable Polarized 4-pin JST Connector Daisy Chain-able

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.sg/products/456773685-sparkfun-qwiic-mux-breakout-8-channel-tca9548a](https://www.desertcart.sg/products/456773685-sparkfun-qwiic-mux-breakout-8-channel-tca9548a)

---

*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-01-31*