PC-I2C/SPI/GPIO/ADC/PWM Adapter with USB interface
USB-TO-GPIO Texas Instruments | Mouser
Numato 16-channel USB GPIO Module - RobotShop
BrightSign GP800-C USB-C To GPIO Adaptor 12-pin Cable Kit | Full Compass Systems
Simple GPIO using USB
8 Channel USB GPIO Module With Analog Inputs | Numato Lab
Adafruit FT232H Breakout - General Purpose USB to GPIO+SPI+I2C
8 Channel USB GPIO Module With Analog Inputs | Numato Lab
4G LTE Dual Gigabit Ethernet CM4 Expansion Board USB GPIO HUB Kit for RPI Raspberry Pi Compute Module 4 Lite 2GB 4GB 8GB RAM
8 Channel USB GPIO Module With Analog Inputs | Numato Lab
Numato 32 Channel USB GPIO Module | AltonaLab
Numato and Pi Supply generic USB GPIO boards
SparkFun USB to Serial GPIO Breakout - CP2103 - BOB-00199 - SparkFun Electronics
Adafruit FT232H Breakout - General Purpose USB to GPIO, SPI, I2C [USB C & Stemma QT] : ID 2264 : $14.95 : Adafruit Industries, Unique & fun DIY electronics and kits
SparkFun USB to Serial GPIO Breakout - CP2103 - BOB-00199 - SparkFun Electronics