According to the press release and the initial retail listing, these 2TB and 4TB portable drives in LaCie’s familiar rugged ... re using it with a compatible Thunderbolt 5 device, of course.

Seagate has expanded its LaCie Rugged series with ... SSDs offering support for Thunderbolt speeds. For example, the Samsung X5 that we tested, supports Thunderbolt 3 and offers sequential read ...