Photo 1 of ANMBEST 2PCS 4 Channel 24V Relay Module with Optocoupler High or Low Level Trigger Expansion Board for Raspberry Pi Arduino

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Photo 1 of ANMBEST 2PCS 4 Channel 24V Relay Module with Optocoupler High or Low Level Trigger Expansion Board for Raspberry Pi Arduino Photo 2 of ANMBEST 2PCS 4 Channel 24V Relay Module with Optocoupler High or Low Level Trigger Expansion Board for Raspberry Pi Arduino