Samsung has been trying to squeeze as much storage as it can into its latest flash chips, and it has done a good job: these 128GB chunks of silicon are, apparently, the industry's highest density memory storage available.
The new chips use super-compact three-bit multi-level-cell, 10nm process technology to pack the storage in. Sounds awful, but it just means that these chips manage to squeeze more memory into the same dimensions as usual flash storage.
The high density doesn't just make these things compact either: they can swap data at a lightning fast 400 megabits per second. The new chips will feature in a range of new, high-capacity memory cards and SSDs in the coming months.