Certainly check the serial vs what you ordered, but it's not looking promising.
I'm going to rely on the wheelbuilder chart found here, about half way down the page.
https://wheelbuilder.com/dt-swiss-hub-conversion-kits/
350 Center Lock Disc & 350 ISO Disc
(Includes straight pull and standard flange hubs)
If the stock setup was a 350 QR, it is not convertible to TA.