Judging by
https://store.coinkite.com/store/coldcard, the USB cable is not part of the package if you purchase the 1st option that just includes the COLDCARD Mk4 for $147. I find that very weird to be honest. I guess you have to buy it separately. They do have a Power-Only USB-C Cable for $17.
I suggest you contact the support and ask them what the precise content of the shipped package is.
To be honest the power only cable is just a gimmick. You can simply connect your coldcard to any phone charger that is plugged in the wall. This will not make it possible for any virus to get on the coldcard and makes this power only cable useless.