This laptop has an HDD storage medium, which is the most commonly found storage medium on medium processor core laptops that are a comparable age to it. HDD is a traditional storage drive which stores the information on magnetic disks. HDD drives are slower than other forms of storage such as solid state drives (SSD) and flash drives.
We think you might also be interested in some of the alternative notebook PCs that have an HDD storage media currently available including because of it's better review score, the Latitude 14 3450, or the Vostro 15 both from DELL or the HP ProBook 650.
If you are looking for a portable PC with a better storage medium then you might also want to consider the Latitude 15 3550 (Hybrid-HDD), the Latitude 14 7000 (Hybrid-HDD), or the Latitude E6540 (Hybrid-HDD) all from DELL which also has a higher rating.