ITEM NAME:MCP23017 serial Interface module IIC I2C 16-bit I/O expander pins 10mhz B&X Description: Brand New and High Quality Model:MCP23017 Color:Black Size:2.6*2.1cm Package Included: 1pcs MCP23017 serial Interface module.1pcs MCP23017 serial Interface module. Size:2.6 2.1cm.