Devantech USB-RLY16 8 Channel 16A Relay Board Controlled Via USB | Rapid Online
diymore 8 Channel Relay Board Type B USB Programmable ULN2803 Relay Driver Chip for Arduino Smart Home DC 12V|usb relay|controller 12vcontroller programmable - AliExpress
8-CHANNEL USB RELAY CARD - Whadda
Amazon.com: 8-Channel DC 12 V Computer USB Control Switch Relay Module USB Switch Controller with Imported High-Performance USB Control Chip : Automotive