NL-USBG-C-008 - 8-channel IO expander with USB communication (bottom header)

Module with 16-channel I/O ports expander controlled by the I2C interface. It was based on the MCP23017 chip. Waveshare MCP23017 IO Expansion Board

16-channel IO expander with 10 analog inputs. The board communicates via the Ethernet interface. Numato Lab GPETH160001

8-channel IO expander with 6 analog inputs. It communicates via the USB interface. Version with Pull-Up resistors. Numato Lab GP80001P

PCA9555APW,118 is a versatile 16-bit I/O expander with I2C interface and interrupt capability, ideal for applications requiring efficient GPIO extension

Module with 4 digital inputs and 4 digital outputs. It communicates via RS485 interface and supports Modbus RTU protocol. The board is enclosed in an industrial enclosure. MA01-AXCX4040

Module with an IO pin expander based on the TCA9534 system. It allows you to add 8 GPIO pins to an I2C-controlled project. SparkFun DEV-17047

BOB-13906

Compact module that allows easy changing of I2C sensor addresses, allowing coexistence of multiple devices with the same address on one bus. With DIP switches and optional soldering resistors, users can easily configure sensor addresses without having to modify the code or use external components. DFRobot DFR1185

Module with 32 IO pins and 14 analog inputs. It communicates via the RS485, USB or Ethernet interface and supports the Modbus RTU/TCP protocol. The board is closed in an industrial housing. Numato Lab NLGM1005-A

Module with 8 analog inputs for voltage measurement in the range from 0 to 10 V. It communicates via the RS485 interface and supports the Modbus RTU protocol. The board is enclosed in an industrial housing. Wellpro WP3084ADAM

Module with a 16-channel GPIO expander with the ability to control LEDs. Equipped with a STEMMA QT connector, it communicates via the I2C interface. Adafruit 4886

8-channel module with digital inputs/outputs with an operating voltage range from 5 to 36 V. It communicates via the RS485 interface and supports communication within the Modbus RTU protocol. The board is enclosed in a housing that can be mounted on an industrial rail. Waveshare Modbus RTU IO 8CH

KAmod Multiplexer features the CD4051 chip, which is an analog 8-channel multiplexer/demultiplexer. The chip can handle analog signals with an amplitude of up to 20 VPP and provides low on-state resistance. The active channel is selected through a sequence of states on three digital inputs

Module with 8 digital inputs and 8 digital outputs. It communicates via the RS485 interface and supports the Modbus RTU protocol. The board is enclosed in an industrial housing. Wellpro WP8028ADAM

Module with 16-channel I/O ports expander controlled by the I2C interface. It was based on the MCP23017 chip

Module with 4 digital inputs, 4 outputs and 6 analog inputs. It communicates via the RS485 interface and supports the Modbus RTU protocol. The board is enclosed in an industrial housing. Wellpro WP9039ADAM