I see my original post was removed by the moderators.
But, seriously, I don't think the Topping DACs are very good (quite the reverse, and I have owned two of them), and I do think that money spent on a decent power cable for a Topping DAC is money wasted.
Better off putting the funds towards a better DAC. For example, the Geshelli DACs are a similar price but much, much better sounding. They also give you upgrade options for the internal op amps, an external linear power supply and in this case a decent power cable is justified.

