The Chromebox has a faster storage speed than most few processor core PCs that were launched around the same time as it. This personal computer has an SSD storage medium, whereas most desktop computers that have been available for around the same time as 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.
An SSD storage medium is actually the best storage speed amongst all PCs of this age and spec.
The worst storage speed amongst comparable types of computer is HDD.
Other SSD personal computers currently available which you might want to consider include cheaper computers such as the Acer Revo One RL85.