The Chromebox has an SSD storage medium which is faster than the HDD storage medium found on most latest computers. 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 computer's storage speed (SSD) is in fact the best storage speed amongst all few processor core PCs that are a similar age to the Chromebox.
An HDD storage medium is the worst storage speed across comparable types of computer.
Personal computers with a faster storage speed that might also be worth considering include the Acer M1-601 (£99.99) (Flash).