The storage speed of this personal computer is HDD, which is typical of many comparable spec desktop computers that have been on the market for a similar time to it. A Hard Disk Drive (HDD) is the traditional storage method for computers. A HDD stores the information on magnetic disks. HDD drives are cheap, but they are slower than Flash and SSD bases storage systems.
If the storage speed of this personal computer is not fast enough for you then you might also want to consider the Zotac ZBOX CA320 nano (SSD) which also has a higher rating.