The storage speed of this personal computer is HDD, which is the most frequently found storage medium on desktop computers of this age and type. 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.
There are a number of alternative HDD computers currently available which you might also want to look at including the HP Z230 (£935.04) which has better reviews.
If the storage speed of this medium processor core desktop computer is not fast enough for you then you might also want to look at the DELL Precision T1700 SFF (SSD and higher rated).