2pcs I2C interface 16-channel IO extension module for Arduino 51 IIC input output expansion board MCP23017-E/SS IIC to 16 Bit IO

2pcs I2C interface 16-channel IO extension module for Arduino 51 IIC input output expansion board MCP23017-E/SS IIC to 16 Bit IO
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sku: 32952422745
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$11.05
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