Handy, cheap, does the job
For Tiny USB Isolator
A great idea, nicely executed. Compact and conveniently shaped, the isolator sits in a computer USB port, and provides a socket of its own to connect whatever probe or tool you want to use. It's nice to know that the unit is totally isolated though, allowing me to easily work on circuits that have different power supplies, without fear of shorting either the logic probe or the laptop due to mismatched grounding.
(Giving a "netural" rating for documentation as there isn't any provided, but frankly the isolator does one tiny simple job and doesn't really need any documentation)
