https://wccftech.com/intel-10th-generation-comet-lake-s-desktop-cpus-27-may-launch/

Intel's 10th Generation Comet Lake-S Desktop CPUs will be announced at the end of this month but our sources have pointed out to the exact date when you will be able to purchase the new CPUs off store shelves.

According to the information I have received, it looks like Intel's Comet Lake-S desktop processors will be hitting retail channels almost a month after their announcement on 30th April. The info is part of the latest NDA which has two segments, the press embargo, and the launch embargo. The press embargo finishes on 30th April at 13:00 GMT and we will see press releases for the 10th Gen lineup along with product announcements based on the 400-series chipsets, mainly Z490. But you will have to wait a whole month before getting hands on the new hardware.