To use this BSS London BLU-120 I/O Expander, first connect it to the correct power supply that comes with it. When setting up, be aware that Output A2 won't work, so you may need to rely on other outputs. Also, since the connectors for C output are missing, you can't use this output unless you find suitable replacements. As for maintenance, keep the expander in a dry and clean place. Check the chassis regularly to ensure the dent doesn't cause any further issues. If you notice any new problems, it's best to get professional help.
