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5V/12V 2 Way Relay Module with Optocoupler Isolation Switch Expansion Board Relay Module Suitable for 3.3V/5V MCU TTL

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Free shipping DC 12V 8 Channel Relay Module with Optocoupler Isolation PLC Control Relay Output 8 Way Relay Module for Arduino

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Quality 3-Ch Relay Expansion Board Designed For Jetson Nano, Optocoupler Isolation

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