Streamer to Denafrips Iris to Pontus need cable suggestions please

Thanks everyone, glad to hear USB is way to go. Guy that sold me Iris threw in a a DB Labs The Essential USB for $20 extra,retail $300 have no idea if it’s good or not so I’ll use it for now. 
 

The Iris is the 12th so it has the added RJ45 cable, have no clue on this one either. I will look at DH Labs ( like the price) and AES/EBU. What’s the story on the RJ45 since they added it in the 12th does that make it better a better connection?

The RJ45 connection is another way to pass i2s. I don't have experience using the RJ45 connection, but I have used the HDMI connection between the Gaia and Terminator Plus.

I have an early Gaia and early Terminator Plus, and with the firmware update, the i2s connection between these two boxes is no longer compatible, so I have had to switch back to AES. Before the firmware update, I preferred i2s over AES, but I do like the firmware update so I'm living with AES. 

I also like DH-Labs for reasonably priced digital cables. I'm currently using their AES cable. 

@jaytor  you can set your gaia to "000" and then try different I2s setting on the Terminator. I had to do this on my Hermes/Venus II and it works again. 

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Please go through the guide detailed here:
https://www.denafrips.com/config-i2s

Suggestion of I²S matching of the Transport & DAC
1. Connect the I²S cable (good quality HDMI cable <3ft/1m)
2. Turn down the volume (audible, minimal)

3. Set Hermes i2s to mode 000.
3. Play a familiar music (PCM first, followed by DSD)
4. Run through the I²S setting of the DAC, 000-111
5. One of the modes should match with the source for both PCM and DSD playback.
000 (1X 2X 4X LED off)
001
011
100
101
110
111 (1X 2X 4X LED on)

@fthompson251 - Unfortunately, my Gaia does not have programmable i2s settings. This feature was not provided in the first version. 

Use the DH Labs USB cable included in the sale from the G2 to the Iris and then I2S cable from the Iris to the Pontus..  If Darren at DH Labs makes an I2S cable at a reasonable price then try that if not then Wireworld.