SainSmart 4-channel 5V USB Relay Module for Automation Robotics – SainSmart.com
USB Relay 16-Channel 3-Amp DPDT with UXP Port: Relay Pros
USB Relay for Windows, Mac, and Linux - Industrial Grade
Amazon.com: SainSmart USB Eight Channel Relay Board for Automation - 12 V : Industrial & Scientific
USB 4 Relay controller - thermoregulator with sensor TCN75A
USB Relay 1 Channel | 102056 | Other by www.smart-prototyping.com
USB 4 Relay Board for Home Automation - v2
5V USB Relay 2 Channel Programmable Computer Control For Smart Home New | eBay
Amazon.com: USB Relay Module Control Switch - LCUS‑1 Type DC 5V with High Performance Control Chip : Industrial & Scientific
SPOTBOT USB Relay - Intruder Surveillance Detection Smart Module
Lcus - Type 1 Usb Relay Module Usb Intelligent Switch Control | Fruugo NO
USB Relay Controller - One Channel - PCB
USB Relay Controller with 6-Channel I/O - DEV-09669 - SparkFun Electronics
8 Channel USB Relay Module
Amazon.com: SMAKN LCUS-1 type USB relay module USB intelligent control switch USB switch : Electronics
4 Channel USB Relay Module_ Botland - Robotic Shop
Al (LC) LCUS - type 1 USB relay module USB intelligent switch control
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 Eight (8) Relay Output Module, Board for Home Automation - 12V | eBay
Devantech 6 x 16A USB Relay Board USB-RLY06 - RobotShop
SPOTBOT USB Relay - Intruder Surveillance Detection Smart Module