aheussI'm not sure of your source on the claim, but Topping's website also shows these are TRS balanced inputs and TRS balanced passthrough. The information on the inputs/passthrough is highly likely to be correct.
The jack is what I would expect to be compatible with Topping's TCT1, TCT2, TCT2, and TCRT1 series of cables. I did not learn of the existence of a 6.35mm TRS balanced jack until I saw the Topping D10 Balanced, so I am not the most knowledgeable. You can learn more about Topping's cables from their website if you're interested.