Well, sadly there is no ‘standard’ established for i2S resulting in manufacturers using both RJ45 and HDMI connectors. This has also lead to some compatibility issues (handshake) between components from different manufacturers. As far as I know there is no designated or specialized cable for i2S yet, you can use any good quality HDMI or Ethernet (RJ45) cable for i2S connectivity.
I waited long enough for this conflict to settle down and recently pulled a trigger on a DAC/streamer that connects directly to my Ethernet network via standard RJ45 LAN connector, thus eliminating the need for any external cabling (i2S, USB, SPDIF, AES/EBU) between the DAC and streamer or server.
I waited long enough for this conflict to settle down and recently pulled a trigger on a DAC/streamer that connects directly to my Ethernet network via standard RJ45 LAN connector, thus eliminating the need for any external cabling (i2S, USB, SPDIF, AES/EBU) between the DAC and streamer or server.