I run a cleaning business that specializes in clearing out derelict properties. Today we were deep in an abandoned flat's basement in Rotterdam.

Behind a desk drawer, I found a clean USB stick. And Two SD cards were also on the floor nearby. To be precized they where near a closet. We want to return them, but my wife is screaming "VIRUS!"

The question: Is it safe to plug this into my main computer, or is this a textbook example of a shady usb. i have absolutly no experience in Tech stuff and my wife watched Mr.Robot and thats really it.

Need advice on the SAFEST way to check these without F-ing something up.

PS:
i am not a very well english writer i used AI to write this and added some sentences my self. I am very sorry for this. I also made a picture i dont know why but they look so clean.