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10 Best Mcp23017 I2C Gpio Expander - May 2026

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Last Updated: 27-05-2026

1

- 11%

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

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

Waveshare

9.8

9.8

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2

CQRobot MCP23017 IO Expansion Board Compatible with Raspberry Pi/Micro:bit/Arduino/STM32. I2C Interface Control, 2 Signal Pins Increase to 16 Input/Output Pins, Supports UP to 8 Simultaneous Uses.

CQRobot MCP23017 IO Expansion Board Compatible with Raspberry Pi/Micro:bit/Arduino/STM32. I2C Interface Control, 2 Signal Pins Increase to 16 Input/Output Pins, Supports UP to 8 Simultaneous Uses.

CQRobot

9.6

9.6

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3

XICOOLEE MCP23017 I/O Expansion Board Module SG-IO-E017, 16 I/O Pins Supports for Raspberry Pi Series, Onboard 3-Digit DIP Switch, I2C Interface Compatible with 3.3V/5V Working Level

XICOOLEE MCP23017 I/O Expansion Board Module SG-IO-E017, 16 I/O Pins Supports for Raspberry Pi Series, Onboard 3-Digit DIP Switch, I2C Interface Compatible with 3.3V/5V Working Level

xicoolee

9.5

9.5

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4

DollaTek MCP23017 Bidirectional 16-Bit I/O Expander with I2C IIC Serial Interface Module

DollaTek MCP23017 Bidirectional 16-Bit I/O Expander with I2C IIC Serial Interface Module

DollaTek

9.2

9.2

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5

Waveshare MCP23017 IO Expansion Board I2C Interface Expands 16 I/O Pins Allows 8 pcs Stacked and Used at the Same Time Allow Multi I2C Modules to be Stacked

Waveshare MCP23017 IO Expansion Board I2C Interface Expands 16 I/O Pins Allows 8 pcs Stacked and Used at the Same Time Allow Multi I2C Modules to be Stacked

Waveshare

9.1

9.1

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6

SEENGREAT CAT9555 IO Expansion Module Board I2C Interface Expands 16 bit Parallel GPIO Expander, SMBus I/O Port, with Pre-soldered Header

SEENGREAT CAT9555 IO Expansion Module Board I2C Interface Expands 16 bit Parallel GPIO Expander, SMBus I/O Port, with Pre-soldered Header

SEENGREAT

8.8

8.8

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7

SEENGREAT MCP23017 IO Expander Module I2C Interface Expands 16 I/O Pins for Ardui/Stm32/Raspberry Pi Zero W Zero WH 2B 3B 3B+ 4B, 3.3V and 5V Levels, 3-Digit DIP Switch

SEENGREAT MCP23017 IO Expander Module I2C Interface Expands 16 I/O Pins for Ardui/Stm32/Raspberry Pi Zero W Zero WH 2B 3B 3B+ 4B, 3.3V and 5V Levels, 3-Digit DIP Switch

SEENGREAT

8.6

8.6

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8

AZDelivery MCP23017 16-bit Bidirectional I/O Port Expander I2C IIC Serial Interface Module 2.7V - 5.5V SPI MCP23S17 compatible with Arduino Including E-Book! (Pack of 5)

AZDelivery MCP23017 16-bit Bidirectional I/O Port Expander I2C IIC Serial Interface Module 2.7V - 5.5V SPI MCP23S17 compatible with Arduino Including E-Book! (Pack of 5)

AZDelivery

8.4

8.4

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9

Ocnvlia 1 Piece MCP23017 Serial Interface Module IIC SPI Bidirectional 16-Bit I/O Expander Black

Ocnvlia 1 Piece MCP23017 Serial Interface Module IIC SPI Bidirectional 16-Bit I/O Expander Black

Ocnvlia

8.2

8.2

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10

- 15%

16 Channel IO Extension Module with I2C Interface for MicroChip MCP23017 Chip, High-Speed IC 100KHz, 400KHz, 1.7MHz Support

16 Channel IO Extension Module with I2C Interface for MicroChip MCP23017 Chip, High-Speed IC 100KHz, 400KHz, 1.7MHz Support

Garosa

8.1

8.1

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