The Asus Chromebox has a faster storage speed than most few processor core personal computers that have been available for more than a year. This computer has an SSD storage medium, whereas most PCs of a similar age and type to it have an HDD storage medium. 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.
This personal computer's storage speed (SSD) is in fact the best storage speed across all desktop computers that have been available for a comparable time to the Chromebox.
The worst storage speed across comparable types of personal computer is HDD.
Alternative SSD personal computers currently available which you might want to consider include the Asus Chromebox ($865.30) which is cheaper.