---
product_id: 411280825
title: "Aobao 10pcs TCA9548A I2C IIC Multiplexer Breakout Board 8 Channel Expansion Board for Arduino"
brand: "aobao"
price: "$26.74"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/411280825-aobao-10pcs-tca9548a-i2c-iic-multiplexer-breakout-board-8-channel
store_origin: US
region: United States of America
---

# 1.65-5.5V wide voltage range 8-channel I2C expansion 400KHz max clock speed Aobao 10pcs TCA9548A I2C IIC Multiplexer Breakout Board 8 Channel Expansion Board for Arduino

**Brand:** aobao
**Price:** $26.74
**Availability:** ✅ In Stock

## Summary

> 🔌 Unlock 8x I2C power and never miss a connection!

## Quick Answers

- **What is this?** Aobao 10pcs TCA9548A I2C IIC Multiplexer Breakout Board 8 Channel Expansion Board for Arduino by aobao
- **How much does it cost?** $26.74 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/411280825-aobao-10pcs-tca9548a-i2c-iic-multiplexer-breakout-board-8-channel)

## Best For

- aobao enthusiasts

## Why This Product

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

## Key Features

- • **Precision Speed Control:** Supports up to 400KHz clock frequency for fast, reliable data transfer.
- • **Expand Your I2C Universe:** Seamlessly connect up to 8 devices with a single multiplexer board.
- • **Bulk Pack for Power Users:** 10 boards included—scale your prototypes or production without missing a beat.
- • **Customizable I2C Addressing:** Selectable addresses from 0x70 to 0x77 let you avoid conflicts effortlessly.
- • **Flexible Voltage Compatibility:** Operates smoothly from 1.65V to 5.5V, perfect for diverse Arduino projects.

## Overview

The Aobao 10pcs TCA9548A I2C IIC Multiplexer Breakout Board set offers 8-channel I2C expansion with selectable addresses (0x70-0x77), operating across a wide voltage range (1.65-5.5V) and supporting up to 400KHz clock speed. Ideal for Arduino and compatible with Windows, Linux, and macOS, this pack of 10 boards empowers developers to scale complex sensor and device networks efficiently.

## Description

Aobao 10pcs TCA9548A I2C IIC Multiplexer Breakout Board 8 Channel Expansion Board for Arduino

## Features

- Chip: TCA9548A
- Interface: I2C IIC
- Selectable I2C address: 0x70-0x77
- Working Voltage: 1.65-5.5V
- Max Clock Frequency: 400KHz

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Aobao |
| Series | AB10p510lq |
| Item model number | AB10p510lq |
| Operating System | Windows, Linux, macOS |
| Item Weight | 1.44 ounces |
| Package Dimensions | 4.29 x 3.15 x 0.67 inches |
| Number of Processors | 1 |
| Manufacturer | Aobao |
| ASIN | B09KY1YNM9 |
| Date First Available | November 3, 2021 |

## Product Details

- **Brand:** Aobao
- **Model Name:** AB10p510lq
- **Connectivity Technology:** I2C
- **Included Components:** 10x TCA9548A I2C IIC Multiplexer Breakout Board 8 Channel Expansion
- **Operating System:** Windows, Linux, macOS

## Images

![Aobao 10pcs TCA9548A I2C IIC Multiplexer Breakout Board 8 Channel Expansion Board for Arduino - Image 1](https://m.media-amazon.com/images/I/818M7WHGj8L.jpg)

## Questions & Answers

**Q: Does this include pullup resistors?**
A: The simple answer is yes. The TCA9548A device has eight bidirectional transfer switches that can be controlled through the I2c bus. The serial clock/serial data (SCL/SDA) upstream pair can be expanded to 8 downstream pairs or lanes. For each channel, external pull-up resistors pull up the bus voltage to the desired voltage level.

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-16*