I looked thru the Q&A for the board. ?It appears the 12V is hardwired to both the optocoupler and the relay coil. ?In that case, the GPIO pin will fail.
I see a poster to the comments section complained his Raspberry Pi failed shortly after connecting the board to his GPIO pins. ?12V on a GPIO pin will do that.
You want a 5v board, or a board with a "jumper", that allows isolation of the Optocoupler from the Relay coil VCC supplies.
A quick search on Amazon found this 16 relay board, with a 5V optocoupler. ?Probably more appropriate for your use case.
https://www.amazon.com/Organizer-16-Channel-Interface-Optocoupler-Arduino/dp/B07Y2X4F77/ref=sr_1_4?dchild=1&keywords=16+relay+module&qid=1628952615&sr=8-4
Alan
