I presume they have been included to go the CE / FCC certification. They are safeguarding against electromagnetic some A part of the circuit such as the power stage to the motherboard and also the I/O board (likely power also) about the CM3 adaptation board. Lucie, Shiba Inu's head https://financefeeds.com/zircuit-launches-zrc-token-pioneering-the-next-era-of-decentralized-finance/