The ATIV Book 9 has an SSD storage medium which is better than most portable PCs that have been on the market for more than two years. Most similar spec notebook PCs that have been on the market for around the same time as it have an HDD storage medium. Solid State Drives (SSD) store data in semiconductors on a circuit board rather than using magnetic or optical media. Solid State Drives have no moving parts which makes them very fast and reliable.
This notebook PC's storage medium (SSD) is in fact the best storage medium across all many processor core portable PCs that have been on the market for a similar time to the ATIV Book 9.
Across comparable types of notebook PC the worst storage medium is HDD.