TTBy Tonetron Engineering Team · Dongguan Taitron Electronic Limited
Do CE and FCC apply to a passive cable?
It depends on what the cable is sold as and with — a passive cable alone is often not the regulated product; the assembly or the host device is.
Answer: it depends on how the product is placed on the market, and a passive cable alone is often outside the scope that applies to the device it connects to.
Active cables (with electronics inside) are a different case from passive ones.
Sold with a device — the device's compliance usually covers the accessory, but the packaging may still need marking.
Sold standalone — ask the supplier what declarations apply and get them for the model.
Do not assume: confirm with the destination market's requirement, and put the answer in the contract.