Relay Module with Optocoupler 1 Channel High Low Level Trigger Relay Module Board AC 250V/10A DC 30V/10A (5V): Amazon.com: Industrial & Scientific
NOYITO 2-Channel Micro USB Relay Module USB Smart Control Switch USB Intelligent Control Switch (2-Channel Micro USB): Amazon.com: Industrial & Scientific
Amazon.com: RPi SSR Solid State Relay Board for Raspberry Pi A+ 3A+ B+ 2B 3B 3B+ 4B : Industrial & Scientific
Amazon.com: USB Relay Module USB Intelligent Switch Control MCU PC USB Smart Control Switch Jog Self-Locking : Electronics
Amazon.com: usb relay
Amazon.com: Lystin 8 Channel DC 5V DC 230V Relay Module Control Board with Optocoupler for UNO R3 MEGA 2560 1280 DSP ARM PIC AVR TTL Logic STM32 Raspberry Pi : Electronics
Amazon.com: Lystin 8 Channel DC 5V DC 230V Relay Module Control Board with Optocoupler for UNO R3 MEGA 2560 1280 DSP ARM PIC AVR TTL Logic STM32 Raspberry Pi : Electronics
Amazon.com: Solid State Relay SSR Board for Arduino Mega-2560 Due : Industrial & Scientific
Amazon.com: Lystin 8 Channel DC 5V DC 230V Relay Module Control Board with Optocoupler for UNO R3 MEGA 2560 1280 DSP ARM PIC AVR TTL Logic STM32 Raspberry Pi : Electronics
Amazon.com: Dual 2 Port USB 3.0 ExpressCard Adapter 5Gbps USB HUB ExpressCard 54mm Slot Express Card PCMCIA Converter for Laptop Notebook PC : Electronics
Amazon.com: USB Relay Module USB Intelligent Switch Control MCU PC USB Smart Control Switch Jog Self-Locking : Electronics
Amazon.com: USB Relay Module USB Intelligent Switch Control MCU PC USB Smart Control Switch Jog Self-Locking : Electronics
1PCS 3V 3.3V 2 Channel Relay Module with Lamp Low Level Trigger 2Channel 2Way Relay Module: Amazon.com: Industrial & Scientific
Amazon.com: Lystin 8 Channel DC 5V DC 230V Relay Module Control Board with Optocoupler for UNO R3 MEGA 2560 1280 DSP ARM PIC AVR TTL Logic STM32 Raspberry Pi : Electronics
Amazon.com: USB Relay Module USB Intelligent Switch Control MCU PC USB Smart Control Switch Jog Self-Locking : Electronics
Amazon.com: Solid State Relay SSR Board for Arduino Uno Yun Leonardo Zero : Electronics
Amazon.com: USB Relay Module USB Intelligent Switch Control MCU PC USB Smart Control Switch Jog Self-Locking : Electronics
Amazon.com: USB Relay Module USB Intelligent Switch Control MCU PC USB Smart Control Switch Jog Self-Locking : Electronics
Amazon.com: SainSmart USB Eight Channel Relay Board for Automation - 12 V : Industrial & Scientific
Amazon.com: USB Relay Module USB Intelligent Switch Control MCU PC USB Smart Control Switch Jog Self-Locking : Electronics
Amazon.com: SainSmart USB Eight Channel Relay Board for Automation - 12 V : Industrial & Scientific
Shelly 1L Relay Switch, WiFi Smart Home Automation Compatible With Alexa & Google Home, iOS Android, No Hub and No Neutral Required, Wireless Light Switch, Smart Appliances Gadgets MQTT Enabled Device: Amazon.com:
Amazon.com: Lystin 8 Channel DC 5V DC 230V Relay Module Control Board with Optocoupler for UNO R3 MEGA 2560 1280 DSP ARM PIC AVR TTL Logic STM32 Raspberry Pi : Electronics
Amazon.com: ARCELI 5PCS KY-019 5V One Channel Relay Module Board Shield for PIC AVR DSP ARM for Relay : Electronics
