SparkFun USB to Serial GPIO Breakout - CP2103 - BOB-00199 - SparkFun Electronics
ViewTool Ginkgo2 Mini USB to CAN/ADC/GPIO Adapter Win/linux/Mac/Android/RasPi | eBay
Connect the Lead | Adafruit's Raspberry Pi Lesson 5. Using a Console Cable | Adafruit Learning System
32 Channel USB GPIO Module With Analog Inputs | Numato Lab
USB GPIO interface for Raspberry Pi,OpenWrt,PC from Peter Jakab on Tindie
8 Channel USB GPIO Module With Analog Inputs | Numato Lab
128 Channel USB GPIO Module With Analog Inputs | Numato Lab
Amazon.com: ViewTool Ginkgo USB to SPI Adapter Converter Support Windows/ Linux/MAC/Android/Raspberry Pi USB-SPI Compatible with CAN/SPI/UART/ADC/DAC/ GPIO : Electronics
Installing Numato Lab USB GPIO and Relay module on Linux on Vimeo
Lu1000 Digital Board USB to GPIO Extended Switch Industrial Computer Linux Android MAC Boutique 2
Ryanteck RTk.GPIO -STM32 - GPIO interface for PC and Mac Botland - Robotic Shop
X-keys USB General Purpose Input Output Module XK-1502-UHIO14-R
Add GPIOs to Windows, Linux, Android Computers and Devices with FTDI USB Adapters / Breakout Boards - CNX Software
8 Channel USB GPIO Module With Analog Inputs | Numato Lab
Simple GPIO using USB
Adapter interfaces 40-pin Raspberry Pi add-ons over USB
8 Channel USB GPIO Module With Analog Inputs | Numato Lab
DLN-2 USB-I2C/SPI/GPIO Adapter
8 Channel USB GPIO Module With Analog Inputs | Numato Lab
Amazon.com: 8 Channel USB GPIO Module with Analog Inputs
USB-I2C/SPI/GPIO/PWM/ADC Interface | $19.10 to $89.40
Numato and Pi Supply generic USB GPIO boards
Numato and Pi Supply generic USB GPIO boards
ViewTool Ginkgo2 Mini USB to CAN/ADC/GPIO Adapter Win/linux/Mac/Android/RasPi | eBay
64 Channel USB GPIO Module With Analog Inputs | Numato Lab
32 Channel USB GPIO Module With Analog Inputs | Numato Lab
