<p>I know that there are "USB condoms" that ensure no data is transferred over the wire, only power.</p><p>Does there exist a "USB data condom" which is specifically designed for removable storage and allows a drive to be mounted through it but bans *other* types of data transfer, IE, it prevents a plugged in device from pretending to be a keyboard or hacking my PCI bus via Thunderbolt or whatever the fuck?</p><p>Could such a USB data condom exist?</p>