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Amazon.com: JBtek 8 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM : Electronics
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TRU COMPONENTS TC-9072496 Relay board 1 pc(s) Compatible with (development kits): Arduino | Conrad.com
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LANDZO 8 Channel 5V DC Relay Module Expansion Board for Arduino Raspberry Pi DSP AVR PIC ARM - Walmart.com
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ELEGOO Relay Module with Optocoupler for Arduino UNO R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Raspberry Pi – ELEGOO Official
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