The storage speed of this PC is SSD, which is typical of many many processor core personal computers that have been around for a comparable time to it. Solid State Drives (SSD) store information in transistors on a circuit board rather than on optical or magnetic media. This has the advantage of being much faster than a traditional HDD drive.
Other SSD desktop computers currently available that you might want to look at include the HP Z440 ($1,449.42), or the Lenovo P900 which is cheaper.
If the storage speed of this HP personal computer is too slow for you then you might also want to look at the ME253 (Flash), the ME253 ($2,994.00) (Flash), or the Mac Pro ($3,099.00) (Flash) all from Apple which is also cheaper.