Relay Boards controlled via USB, IP and Wi-Fi Denkovi A E LTD
USB Relay Controller - Four Channel
GitHub - logreposit/denkovi-relay-api: HTTP API / Webinterface to control a Denkovi 16 Channel Relay USB board via RS232 (http://denkovi.com/usb -16-relay-board)
USB 16 Relay Manager - Download - Developed by Denkovi and is used for controlling all USB 16
KP4AZH - Callsign Lookup by QRZ Ham Radio
USB 16 Relay Board RS232 Controlled - User Manual
U96 USB relay & DAQ card from Iknowvations on Tindie
USB Relay Controller Board - 4 Channels for Home Automation
USB 8 Channel Relay Board Setup for Transverters and Bit Menu Setup and TX delay — FlexRadio Community
Amazon.com: USB Eight (8) Channel Relay Board for Automation - 24VDC : Electronics
USB 8 Opto-Isolated Digital Inputs Module for KIOSKS | eBay
Relay Boards controlled via USB, IP and Wi-Fi Denkovi A E LTD | Facebook