I’m currently putting a Shimano crankset into a Cannondale frameset.
Caveat - Cannondale slaps BB30 stickers on BB30, BB30A, and PF30A frames. Even their tech docs and catalogues are sloppy. Measure shell width, and shell inner diameter to confirm.
Once you figure out which you have, the adapters and shims from 30mm to 24mm are easy.
See
https://wheelsmfg.com/bb30a-tech-info for info.
Double caveat - some Cannondale framesets follow BBRIGHT too. Unlikely for a ten year old frame. But sigh.
p.s. Forever amazed by the false binaries.
-mr. bill