A kit containing a 40-pin EtherStem module, 40-pin mini breakout board and a USB A to mini B cable and an Ethernet cable; a $23 savings over buying everything separately. Easy to order and get started.

The 40-pin USBStem module is a general purpose embedded I/O module with a USB 2.0 interface.

The 40-pin USBStem module is a general purpose embedded I/O module with a USB 2.0 interface.

The 40-pin USBStem module is a general purpose embedded I/O module with a USB 2.0 interface.

This module has been discontinued by the manufacturer and replaced by the USB-ISS

INTERFACE EFFICIENTLY: The Devantech USB to I2C module provides a complete interface between your PC and the I2C bus.

Adapter for communicating to I2C, SPI and serial buses from a USB port. Output pins may alternatively be configured as general purpose digital input/output and analog inputs.

Devantech self-powered USB to RS485 adapter with support for baud rates up to 250kbps, automatic bus turn-around, and buses up to 128 devices.

This connector converts a serial or UART signal from TTL to RS-232 levels. Included are indicator LEDs for host serial power and TTL logic power.

This serial adapter bridges UART serial data to USB as a virtual serial port. The connector allows you to communicate with a device that requires serial data at common serial baud rates.