If they have an A connector at the other end they are easily identified by just looking how many contacts it has.
These were made to save money but I found them handy for security reasons (no need for a USB condom).
These were made to save money but I found them handy for security reasons (no need for a USB condom).
I have seen them called “data blocker” or “secure charging cable” but what you want is one that is a female-to-male device so you can attach it to charging cables not just bricks.
Type C is harder. I have one from the early days of Type C that doesn’t do PD so in the end it’s only useful for phones. I haven’t seen one that does Power Delivery.