Surround Sound Conversion

[bming]

I have has a couple of very old computers with sound cards in them capable of recording up to 6 discrete channels of audio. I have been using them over the years to convert my hundreds of quadraphonic recordings. They have died and the sound hardware cannot be used on newer machines.
Are there any modern USB units capable of recording at least 4 discrete audio tracks thaat can be used on Windows 10 or 11. I have just got the Surround Master and I was going to upgrade the SQ and QS conversions, only to find my hardware has failed me.

 

[stoopid]

Do you need 4+ physical inputs, or just routing 4+ simultaneous streams of audio from a source (via virtual gymnastics)? Any modern computer can handle multiple audio streams, if you need physical inputs check out home recording websites for suggestions (Behringer makes some good low budget multichannel usb interfaces, Focusrite [like the 4i4] would be the next tier still fairly cheap).