CTI 2571 505 SERIES PROGRAM PORT EXPANDER | eBay
SF-3 Port Expander | Celtic Engineering Solutions
MCP23017 - i2c 16 input/output port expander
GMS 10 | Garmin
pyControl - Port Expander - LABmaker
IO-Port Expanders Offer Flexibility in MCU Designs | DigiKey
$3.29 - 16 Port Expander: SPI MCP23S17 - Tinkersphere
Microchip Technology Inc. MCP23017-E/SP I/O Port Expander, 16-Bit, I2C I'face, SDIP-28: Amazon.com: Industrial & Scientific
MCP23008 - i2c 8 input/output port expander : ID 593 : $1.95 : Adafruit Industries, Unique & fun DIY electronics and kits
8:1 Serial Port Expander | Atlas Scientific
Pcf8575 Io Expander Module I2c To 16io Integrated Circuits For Arduino - Instrument Parts & Accessories - AliExpress
MAX7313 16-Port I/O Expander with LED Intensity Control, Interrupt, and Hot-Insertion Protection | Analog Devices
MAX7321 I2C Port Expander with 8 Open-Drain I/Os | Analog Devices
PCF8574 I2C to 8-bit digital port expander
Remote MCP23017 I2C 16-bit Port Expander Breakout Board — PMD Way
Port Expander Library
MCP23017 - i2c 16 input / output port expander - Melopero Electronics
10pcs Pcf8575 Module Expansion Io Port Expander Board Dc 2.5-5.5v I2c Communication Control 16 Io Ports For Arduino - Integrated Circuits - AliExpress
Atlas Scientific 8:1 Serial Port Expander
Daktronics Port Expander - Graphics Outfitters
