The Chromebox has an SSD storage medium which is faster than most few processor core personal computers that have been available for a similar time to it. Most few processor core personal computers that have been around for a similar time 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 desktop computer's storage speed (SSD) is in fact the best storage speed amongst all personal computers of a comparable age and type to the Chromebox.
The worst storage speed amongst comparable types of desktop computer is HDD.
Alternative SSD computers currently available which you might want to look at include the Asus UN42[plb_3009066_price] which has better reviews.