That's not shimano spacing but I'm sure you're already aware of that
The one I purchased has very close to Shimano cog spacing.
It is specified for R9270 and R8170 Shimano groups. I am running one of these. Spacing between cogs is very close to 3.55mm, and not SRAM's 3.65mm. (
I have assumed that the "ULT Series" is referring to Ultegra, not its weight.)
I could be wrong, but I was running a Shimano Ultegra 12 speed cassette, and had another 700C rear XDR wheel. I put on the new wheel with this ZTTO cassette and I didn't have to make any adjustments. Shifts are as smooth as the Ultegra cassette I was running.