USB-IIRO-16: Four, Eight, and 16 Isolated Input and Form C Relay Output USB Modules - ACCES I/O Products
DeVaSys USB-I2CIO USB-to-I2C with I/O Interface Board ($89.00) : Saelig Online Store
4-Channel Push Notification Contact Closure Input over USB - store.ncd.io
MJS Gadgets USB I/O-1 4 Input/Output USB Controlled Relay
USB-I2C/IO (Rev. C1)
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Digital I O module - DT9817 series - Data Translation - USB
32-Channel Isolated Digital I/O USB Data Acquisition Module
USB Relay Controller with 6-Channel I/O - DEV-09669 - SparkFun Electronics
CM4-IO-BASE-A + USB HDMI Adapter, for Raspberry Pi Compute Module 4 | CM4-IO-BASE-Acce A
MCC USB-1808X: High-Speed, High-Precision, Simultaneous USB DAQ Device - Digilent
USB IO Board Stick Kit - Electronics-DIY.com
Buy IO-Link Master USB CDSU online | Festo USA
USB 96-Channel Digital I/O Devices - Measurement Computing
Yocto-IO - USB device with 4 digital I/O
USB-DIO-16H Family Digital Waveform I/O Modules - ACCES I/O Products
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USB 32-Bit High-Speed Digital I/O Devices - Measurement Computing
Highly versatile USB-IO board enables control and monitoring - What's New in Electronics
USB IO-Link Master: Great tool for commissioning IO-Link devices - YouTube
Analog Input/Output, USB Input/Output Unit | Contec | MISUMI
Amazon.com: for Raspberry Pi Compute Module 4 IO Board,Mini Base Board (B) Full Version with Standard CM4 Socket and Color-Coded Raspberry Pi 40PIN GPIO Header Onboard CSI/DSI/FAN/HDMI/USB/RJ45 Connectors : Electronics
USB 24-Channel Digital I/O Boards - Measurement Computing
USB IO Hardware
Industrial IoT Wireless USB Gateway/Modem Receiver
USB 8 Opto-Isolated Digital Inputs Module - Denkovi A E LTD
USB IO Board – ODROID
MCC USB-1024 Series: 24 Channel Digital I/O USB Devices - Digilent