The storage speed of this computer is HDD, which is typical of many medium processor core computers that have been on the market for a comparable 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 you would prefer a computer with a faster storage speed then you might want to look at the 800 G2 SFF (£837.99) (SSD), or the 600 G2 Mini (£1,282.66) (SSD) both from HP.