USB-RLY08-C - 8 channel USB relay , from Devantech for €48.51
USB Relay Controller - One Channel - HyperTerminal ASCII commands
USB Relay - SPOTBOT
DC 5V USB Relay 2 Channel Programmable Computer Control Power Supply Module for Smart Home Controller Relay Board 250V 10A: Amazon.com: Industrial & Scientific
USB Relay Controller Board - 4 Channels for Home Automation
USB Module - 2 Relays 16A with Snubbers, USB-RLY02-SN - Antratek Electronics
12 v 10 A optical coupling isolation relay module trigger mode is adjustable
8 Channel USB Relay Module
Amazon.com: SainSmart USB Eight Channel Relay Board for Automation - 12 V : Industrial & Scientific
Module de relais USB 1 canal 5V de haute qualité - Otronic
USB Relays with Analog Inputs and GPIO from NCD - ncd.io
Devantech 6 x 16A USB Relay Board USB-RLY06 - RobotShop
USB 4 Relay controller - thermoregulator with sensor TCN75A
Directly controlling a relay from Home Assistant Blue - preferably via USB - Home Assistant Community
Micro Usb Relay Module 5v 4 Channel Relay Module Relay Control Panel | Fruugo NO