SD card voltage rating
Tha is not a "SD card voltage rating"; that is a max rating for what is safe to apply to the connector. You don't ignore it – you happily realize you're not dealing with voltages anywhere close to that and don't have to worry about arcing within the connector.

(Just for clarity: an SD card does not tolerate 125 V AC. The connector would. Just as your bathtub withstands 98 °C hot water, but you in that certainly wouldn't.)