AEDIKO 4pcs DC 12V Relay Module 1 Channel Relay Board with Optocoupler Isolation Support High or Low Level: Amazon.com: Industrial & Scientific
Amazon.com: 1PCS 24V 8 Channel Relay Module High and Low Trigger Red Board 8Channel Relay Module : Electronics
Amazon.com: HiLetgo 12V 8 Channel Relay Module with OPTO-Isolated High and Low Level Trigger 8 Ways Relay Switch Module for Arduino : Industrial & Scientific
8 Channel Bluetooth 4.0 Relay Android Mobile Remote Control Switch DC 12V 10A Relay Module for Android Phones with Bluetooth 4.0: Amazon.com: Industrial & Scientific
Amazon.com: AEDIKO 8 Channel Relay Module DC 5V Relay Board with OPTO-Isolated Support High or Low Level Trigger : Automotive
Electronics-Salon 8 Channel DPDT Signal Relay Module Board (Operating Voltage: DC 12V): Amazon.com: Industrial & Scientific
8 Channel I2C Interface Electromagnetic Relay Module for Arduino Raspberry 3.3V 5.0V 10A Peak LEDs Indicators for Each SSR Relay Channel Control AC DC Voltage: Amazon.com: Industrial & Scientific
Amazon.com: 8 Channel I2C Interface Bus Solid State Relay Module for Arduino Raspberry PI and All Mic, AC Voltage Frequency Range 50…60Hz, AC Controlling Voltage Range 100…240VAC Long Life Quite Relay :
Amazon.com: SainSmart 8-Channel 5V Solid State Relay Module Board for Arduino Uno Duemilanove MEGA2560 MEGA1280 ARM DSP PIC : Everything Else
2PCS DC 12V 8 Channel Relay Module with Optocoupler Isolated Support High and Low Level Trigger 8 Ways Relay Switch Module: Amazon.com: Industrial & Scientific
HiLetgo 24V 8 Channel Relay Module with OPTO-Isolated High and Low Level Trigger 8 Ways Relay Switch Module for Arduino: Amazon.com: Industrial & Scientific
5V/12V/24V 8 Channel Optocoupler Relay Module Board with High/Low and Trigger Power Indicator Light(24V): Amazon.com: Industrial & Scientific
Amazon.com: SainSmart USB Eight Channel Relay Board for Automation - 12 V : Industrial & Scientific
Amazon.com: JBtek 8 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM : Electronics
Amazon.com: JBtek 8 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM : 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