In this video [1] he mentions that each 100mp image is around 600MB, which aligns with the size of the 4-shot multi-shot mode of the H6D-400C MS. 8439 photos 579MB would be around 4.7TB in raw format.

[1] https://www.youtube.com/watch?v=z_hm5oX7ZlE [2] https://www.hasselblad.com/h-system/h6d-400c-multi-shot/