![Amazon.com: 5V 16 Channel USB Relay Module Computer Switch Control, USB Control Switch with PCB Board/High Sensitivity : Electronics Amazon.com: 5V 16 Channel USB Relay Module Computer Switch Control, USB Control Switch with PCB Board/High Sensitivity : Electronics](https://m.media-amazon.com/images/I/61NhCSJ3xSL._AC_UF894,1000_QL80_.jpg)
Amazon.com: 5V 16 Channel USB Relay Module Computer Switch Control, USB Control Switch with PCB Board/High Sensitivity : Electronics
![Amazon.com: 12V 8 Channel Programmable Relay Module USB Computer Control for Smart Home S : Electronics Amazon.com: 12V 8 Channel Programmable Relay Module USB Computer Control for Smart Home S : Electronics](https://m.media-amazon.com/images/I/51fzPqbymoL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: 12V 8 Channel Programmable Relay Module USB Computer Control for Smart Home S : Electronics
![Amazon.com: 8-Channel DC 12 V Computer USB Control Switch Relay Module USB Switch Controller with Imported High-Performance USB Control Chip : Automotive Amazon.com: 8-Channel DC 12 V Computer USB Control Switch Relay Module USB Switch Controller with Imported High-Performance USB Control Chip : Automotive](https://m.media-amazon.com/images/I/71wR1YW-8qL.jpg)
Amazon.com: 8-Channel DC 12 V Computer USB Control Switch Relay Module USB Switch Controller with Imported High-Performance USB Control Chip : Automotive
![SainSmart USB 4 Channel DC 12V Relay Module Automation for Arduino Raspberry Pi DSP AVR PIC ARM: Usb Relay Board: Amazon.com: Industrial & Scientific SainSmart USB 4 Channel DC 12V Relay Module Automation for Arduino Raspberry Pi DSP AVR PIC ARM: Usb Relay Board: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/41aYDXWyvJL._AC_UF1000,1000_QL80_.jpg)
SainSmart USB 4 Channel DC 12V Relay Module Automation for Arduino Raspberry Pi DSP AVR PIC ARM: Usb Relay Board: Amazon.com: Industrial & Scientific
![Amazon.com: ASHATA USB Switch Module, 4-Channel 24V Computer USB Smart Switch Controller,PC Relay Drive Module Expansion Board : Industrial & Scientific Amazon.com: ASHATA USB Switch Module, 4-Channel 24V Computer USB Smart Switch Controller,PC Relay Drive Module Expansion Board : Industrial & Scientific](https://m.media-amazon.com/images/I/61jk22QdOFL._AC_UF894,1000_QL80_.jpg)
Amazon.com: ASHATA USB Switch Module, 4-Channel 24V Computer USB Smart Switch Controller,PC Relay Drive Module Expansion Board : Industrial & Scientific
![Amazon.com: NOYITO 2-Channel Micro USB Relay Module USB Smart Control Switch USB Intelligent Control Switch (2-Channel Micro USB) : Electronics Amazon.com: NOYITO 2-Channel Micro USB Relay Module USB Smart Control Switch USB Intelligent Control Switch (2-Channel Micro USB) : Electronics](https://m.media-amazon.com/images/I/81SdT3ZVV+L._AC_UF894,1000_QL80_.jpg)
Amazon.com: NOYITO 2-Channel Micro USB Relay Module USB Smart Control Switch USB Intelligent Control Switch (2-Channel Micro USB) : Electronics
![Amazon.com: NOYITO 1-Channel USB Relay Module USB Intelligent Control Switch USB Switch (1-Channel USB) : Electronics Amazon.com: NOYITO 1-Channel USB Relay Module USB Intelligent Control Switch USB Switch (1-Channel USB) : Electronics](https://m.media-amazon.com/images/I/719MHU-GZRL._AC_UF350,350_QL80_.jpg)
Amazon.com: NOYITO 1-Channel USB Relay Module USB Intelligent Control Switch USB Switch (1-Channel USB) : Electronics
![Amazon.com: 8-Channel DC 12 V Computer USB Control Switch Relay Module USB Switch Controller with Imported High-Performance USB Control Chip : Automotive Amazon.com: 8-Channel DC 12 V Computer USB Control Switch Relay Module USB Switch Controller with Imported High-Performance USB Control Chip : Automotive](https://m.media-amazon.com/images/I/61Xo+F3J3aL.jpg)
Amazon.com: 8-Channel DC 12 V Computer USB Control Switch Relay Module USB Switch Controller with Imported High-Performance USB Control Chip : Automotive
![DC 5V USB Relay 2 Channel Programmable Computer Control Power Supply Module for Smart Home Controller Relay Board 250V 10A: Amazon.com: Industrial & Scientific DC 5V USB Relay 2 Channel Programmable Computer Control Power Supply Module for Smart Home Controller Relay Board 250V 10A: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/51-tGlrz-hL.jpg)
DC 5V USB Relay 2 Channel Programmable Computer Control Power Supply Module for Smart Home Controller Relay Board 250V 10A: Amazon.com: Industrial & Scientific
![DZS Elec 5V-30V 1 Channel Wilde Voltage 0-24s Adjustable Delay Internal/External Trigger Relay Board with Timer Delay Conduction Delay Circuit Switch with USB to Micro USB Power Line: Amazon.com: Tools & Home DZS Elec 5V-30V 1 Channel Wilde Voltage 0-24s Adjustable Delay Internal/External Trigger Relay Board with Timer Delay Conduction Delay Circuit Switch with USB to Micro USB Power Line: Amazon.com: Tools & Home](https://m.media-amazon.com/images/I/41GcMLI31XL.jpg)
DZS Elec 5V-30V 1 Channel Wilde Voltage 0-24s Adjustable Delay Internal/External Trigger Relay Board with Timer Delay Conduction Delay Circuit Switch with USB to Micro USB Power Line: Amazon.com: Tools & Home
![Amazon.com: NOYITO 1-Channel USB Relay Module USB Intelligent Control Switch USB Switch (1-Channel USB) : Electronics Amazon.com: NOYITO 1-Channel USB Relay Module USB Intelligent Control Switch USB Switch (1-Channel USB) : Electronics](https://m.media-amazon.com/images/I/7118YFUfXSL._AC_UF894,1000_QL80_.jpg)
Amazon.com: NOYITO 1-Channel USB Relay Module USB Intelligent Control Switch USB Switch (1-Channel USB) : Electronics
![Amazon.com: 5V 16 Channel USB Relay Module Computer Switch Control, USB Control Switch with PCB Board/High Sensitivity : Electronics Amazon.com: 5V 16 Channel USB Relay Module Computer Switch Control, USB Control Switch with PCB Board/High Sensitivity : Electronics](https://m.media-amazon.com/images/I/61QpK-Q6emL._AC_UF350,350_QL80_.jpg)
Amazon.com: 5V 16 Channel USB Relay Module Computer Switch Control, USB Control Switch with PCB Board/High Sensitivity : Electronics
![DollaTek LCUS - modulo relè USB Tipo 1 Controllo Interruttore Smart USB : Amazon.it: Commercio, Industria e Scienza DollaTek LCUS - modulo relè USB Tipo 1 Controllo Interruttore Smart USB : Amazon.it: Commercio, Industria e Scienza](https://m.media-amazon.com/images/I/61DCinQ5PPL._AC_SL1047_.jpg)
DollaTek LCUS - modulo relè USB Tipo 1 Controllo Interruttore Smart USB : Amazon.it: Commercio, Industria e Scienza
![Amazon.com: ASHATA Relay Module, 4-Channel 12V Computer USB Smart Switch Controller PC Relay Module Expansion Board Use Imported High Performance USB Control Chip. : Industrial & Scientific Amazon.com: ASHATA Relay Module, 4-Channel 12V Computer USB Smart Switch Controller PC Relay Module Expansion Board Use Imported High Performance USB Control Chip. : Industrial & Scientific](https://m.media-amazon.com/images/I/61f+kbhC+aL._AC_UF894,1000_QL80_.jpg)
Amazon.com: ASHATA Relay Module, 4-Channel 12V Computer USB Smart Switch Controller PC Relay Module Expansion Board Use Imported High Performance USB Control Chip. : Industrial & Scientific
![USB 4 Channel (10A) Relay Output Module,Board for Home Automation: Amazon.com: Industrial & Scientific USB 4 Channel (10A) Relay Output Module,Board for Home Automation: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/71QUJKGt02L._AC_UF1000,1000_QL80_.jpg)
USB 4 Channel (10A) Relay Output Module,Board for Home Automation: Amazon.com: Industrial & Scientific
![Amazon.com: 8CH 12V USB Relay Module Controller FTDI chip Relay Controller Type B USB Relay Board Module Controller for Automation Robotics : Industrial & Scientific Amazon.com: 8CH 12V USB Relay Module Controller FTDI chip Relay Controller Type B USB Relay Board Module Controller for Automation Robotics : Industrial & Scientific](https://m.media-amazon.com/images/I/61p1kfa5AUL.jpg)