I want to use my PC as an amp simulator. Im currently using guitar rig 5 with asio4all plugging my guitar trough line in. It works fine but i want to listen to youtube simultaneously but it doesnt work. I tried everything to make it work (multi asio, virtual cable...) but it doesnt. I know that i need an external sound card but im wondering if the really cheap ones (from aliexpress for like 10-20$) will do the trick? I was thinking of buying something like this: https://urlzs.com/6f4TF Im not a pro musician im just playing for fun so the low quality really doesnt bother me that much.
I recommend checking out the "iRig". You can pick up a used/open box on ebay for between $4 and $20 depending on what device you want to connect to. It behaves like any other i/o interface, but pretty minimal. There are some that are exclusively for mobile devices (iOS and android) but I believe there is PC support depending on the model.
Update: I just want to add that I've been using a native instruments Komplete audio 2 with my guitar directly plugged in to the instrument input. I use it with NI Guitar Rig. I also plugged my pedalboard in to it and it sounds great! WAY better than any practice amp I've ever used.