AudioGd DI 20 interface and USB cable quality

In your opinion, is it important to use a high quality USB cable between the Mac Mini (or pc) and the Audio Gd DI 20 interface? I say this because the differences between USB cables that I perceived by connecting the Mac Mini to the AudioGd Master 7 dac are no longer so tangible since between these two I inserted the DI 20 (from which I then go out in I2S towards the Master 7). What do you think of it?
I think once you get to a certain level the cables will likely not make a big difference. Of course a ifi or audiosensibility statement usb cable will be better than a 4$ generic cable. But beyond that level its hard diminishing returns.
Probably an external clock on the DI20 will make a bigger difference.