HDMI i2s Cable

@auxinput. Thanks for the advice. When it comes to i2s, I’ve read that shorter is better. The Matrix will be close enough to the DSD for a .5 meter cable. 
I’ll be running a WW Starlight USB from an Innous Zenith to the Matrix and somebody’s HDMI cable from it to the DSD. 

Here's one under $500. 

https://kitsunehifi.com/product/generic-i2s-hdmi-cable-0-3m/

I don't have any experience with i2s, but every other digital interface/cable that I have used still has problems with shorter cables.  This includes HDMI, S/PDIF, USB. 

Since i2s is just about the same as S/PDIF, but without the S/PDIF wrapper, it would be my opinion that shorter cables would still have problems. 

The problems with short cables has to do with the square waveform digital pulses being reflected at the receiver back down the cable to the source.  These reflections alter and distort the new pulses being generated at the source transport.  Since i2s is just another digital square waveform format, I would imagine that it's still affected by short cable problems.

I2S cables need to be as short as possible. I2S was never intended for box to box transmission only chip to chip.

With recomendation of the Wireworld silver starlight 5  would the 7 not be better or even the Platinum version which uses pure silver conductors?