Basically, it's just two inputs for your recording. Well, yes, it probably removes the load from the hardware of the computer. But in fact, this didn’t make the program lag less at high load (9 tracks with a bunch of effects, midi, etc.). I checked it with and without a card, it lags the same and the same, although I have an old laptop with a built-in audio card. Can't say it's a sensible purchase.
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