[thaumasiotes]

It goes farther. Every single cable (USB, HDMI, ethernet... that kind of cable) you buy will come with the same label "this product contains lead, a chemical known to the state of California to cause birth defects etc etc etc". It might have more of an effect if there were any cables that didn't come with the warning.

[jrabone]

Presumably not ones assembled with lead-free solder? (not that the plastics are likely much safer by Californian standards, but still)

[Serow225]

It's not usually the solder, often the rubber in the cable contains some white lead.