AK-PCF8575 – I2C 16-bit IO Expander Breakout | Artekit Labs
Microchip Technology Inc. MCP23017-E/SP I/O Port Expander, 16-Bit, I2C I'face, SDIP-28: Amazon.com: Industrial & Scientific
Raspberry Pi Port Expander HATs | The Pi Hut
Daktronics Port Expander - Graphics Outfitters
RPI SHD DOUBLER: Raspberry Pi Shield - GPIO port expander at reichelt elektronik
Vertical Express | PCB, PORT EXPANDER, MERID
New 16-bit GPIO Port Expander, Provides I2C interface and Level Shifting for any Peripherals
Port Expander Library
SF-3 Port Expander | Celtic Engineering Solutions
IO-Port Expanders Offer Flexibility in MCU Designs | DigiKey
Port Expanders Extend MCU Functionality | DigiKey
I2C Port Expander Board (Arduino code included!) from Celtic Engineering Solutions on Tindie
MikroElektronika - Port Expander Board - MCP23S17 Development Tool
Pcf8575 Module Expansion Io Port Expander Board Dc 2.5-5.5v I2c Communication Control 16 Io Ports For Arduino - Integrated Circuits - AliExpress
GMS 10 | Garmin
Daktronics Port Expander – Serial Tools
Inline MCP23017 I2C 16-bit Port Expander Breakout Board — PMD Way
PCF8574 I2C to 8-bit digital port expander
CTI 2571 505 SERIES PROGRAM PORT EXPANDER | eBay
MCP23008 - i2c 8 input/output port expander : ID 593 : $1.95 : Adafruit Industries, Unique & fun DIY electronics and kits
MCP23017 - i2c 16 input/output port expander
Adafruit GPIO Expander Bonnet - 16 Additional I/O over I2C : ID 4132 : $9.95 : Adafruit Industries, Unique & fun DIY electronics and kits
MAX7313 16-Port I/O Expander with LED Intensity Control, Interrupt, and Hot-Insertion Protection | Analog Devices
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
I/O Expander - MCP23008 - COM-15099 - SparkFun Electronics
pyControl - Port Expander - LABmaker
