I recently purchased a Shure SM7B microphone to use in an entry-level home studio, but I want to be able to switch it between multiple desktops. I already have a KVM for switching all of my other peripherals, so I'd prefer to use that if possible vs another device. Popular recommendations like the Focusrite USB audio interface would work, except the only free port I have available on the KVM is aux input. The standard USB -> aux adapter, like this one, have extremely poor ratings and seem unreliable, so I'm hesitant to go that route.
Is this just a limitation of aux and I'll have to take on another USB connection? Or is there some series of devices/adapters that would reliably get me from my XLR microphone to aux on my KVM without compromising audio quality?