[abetusk]

This HN post is the first I'm hearing about it but looking at a video the a reviewer put up, it looks like (at least in an earlier version) there are SATA lines dedicated to particular slots. [0] [1]

[0] https://turingpi.com/turing-pi-v2-first-review/

[1] https://www.youtube.com/watch?v=IUPYpZBfsMU&t=540s

EDIT: looks like the reviewer is not the creator, my apologies. Fixed the above