The storage speed of this personal computer is HDD, which is typical of many comparable spec desktop computers that came out around the same time as 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 HP computer is too slow for you then you might want to consider the Acer Chromebox CXI ($319.82) (SSD) which is also cheaper.