The safest option is obvious, donโt try to access its contents, but if you absolutely had to, what steps would you take to minimize/contain any potential harm to your device/network?
A computer I donโt like very much, booted into some sort of Linux live environment, and zero network connectivity to anything: physically disabled if at all possible (like I mean a switch, not prying your wifi chipset out or whatever).
Linux live USB, plug the drive into a sacrificial hub that can eat a bus kill if needed
I think something to protect against this https://usbkill.com/products/usbkill-v4
They mean the USB bus. But killing the bus is a driver-level thing that the kernel controls, not the user. You can disable the port with CLI commands or a GUI depending on the OS, but killing the bus requires uninstall of the driver or manually shorting the caps directly on the mainboard, which is dumb.
Boot a PC with no hard drives with a live CD so there is no storage to write to. connect the drive and see what there is.
I would play it safe and test it on my work PC in case thereโs anything that can cause trouble.
Boot a Linux livecd on a computer with storage unattached. Connect USB through a hub.