Thanks, I was almost certain but the OEM part came with longer coax, your post saved me time, and reasured me ;)

Thanks for the guide Asam!

@johnninfor

Yes, I would like to know as well the exact model number for iMac 21.5 4K 2017? The other iMac guides sugged another module that may not be compatible with this model? The only bits that are readable are BCM?

Oh, I saw it - step 29, I must be blind ;) It’s BCM943602CDP, thanks!