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Waveshare 2PCS MCP23017 IO Expansion Board I2C Interface Expands 16 I/O Pins Compatible with Both 3.3V and 5V Levels

Item #: 9SIVAMDM948374
Mfr. Part #: 69044404554

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I2C address configurable by shorting the A0/A1/A2 jumpers

Overview

Specs

Reviews

I2C controlled, expands 2 signal pins as 16 I/O pins
I2C address configurable by shorting the A0/A1/A2 jumpers
Provides two connector options: PH2.0 terminal and/or solder pads, allows multi I2C modules to be stacked
Onboard voltage translator, compatible with 3.3V/5V level

Additional Information
First Listed on Newegg	October 20, 2026

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Return for refund within: 30 days
Return for replacement within: 30 days
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Item#: 9SIVAMDM948374