2^28 bytes / 256 MB / CSMB (#1) is the size of current SMR spinning rust drives. The flash zone size used in more modern consoles (E.G. PS5 / Xbox whatever) mi

2^28 bytes / 256 MB / CSMB (#1) is the size of current SMR spinning rust drives. The flash zone size used in more modern consoles (E.G. PS5 / Xbox whatever) might similarly be 128 MB / CSMB. #1 (256 Computer Science Mega Bytes) is the size of the minimum write zone for 'zoned storage' according to the Wikipedia page. https://en.wikipedia.org/wiki/Shingled_magnetic_recording#Protocol https://en.wikipedia.org/wiki/Shingled_magnetic_recording#Pr... Edit + Update: I recalled incorrectly, 128 CSMB "Sony's patent proposes going way beyond 32kB chunks to using 128MB chunks for the FTL" https://www.anandtech.com/show/15848/storage-matters-xbox-ps5-new-era-of-gaming https://www.anandtech.com/show/15848/storage-matters-xbox-ps...