[Amazon.com] Kootek 8 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM

[Amazon.com] SunFounder 2 Channel 5V Relay Shield Module for Arduino UNO 2560 1280 ARM PIC AVR STM32 Raspberry Pi

[Amazon.com] SainSmart 8-Channel Relay Module

[Amazon.com] SunFounder 4 Channel 5V Relay Shield Module for Arduino UNO 2560 1280 ARM PIC AVR STM32

[Amazon.com] SainSmart 4-Channel Relay Module

[Amazon.com] SainSmart 16-Channel Relay Module

[Amazon.com] SunFounder 8 Channel 5V Relay Shield Module for Arduino UNO 2560 1280 ARM PIC AVR STM32 Raspberry Pi

[Amazon.com] SainSmart 2-Channel Relay Module

[Amazon.com] SainSmart 8-Channel 5V Solid State Relay Module Board for Arduino Uno Duemilanove MEGA2560 MEGA1280 ARM DSP PIC

[Amazon.com] 2 relay module relay expansion board with optocoupler protection module 5V

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