The Lenovo T440p has an SSD storage medium which is better than the HDD storage medium found on most medium processor core notebook PCs that were launched more than two years ago. 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 notebook PCs of a similar type and age to the T440p.
An HDD storage medium is the worst storage medium across comparable types of notebook PC.
If you are looking for a notebook PC with a better storage medium then you might want to look at the T420s[pl_48433_price] (SSD), or the S540[pl_2433540_price] (SSD) both from Lenovo.