The ZBOX BI323 has an SSD storage medium which is faster than the HDD storage medium found on most medium processor core computers that have been around for around the same time as it. 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 actually the best storage speed amongst all similar spec personal computers that have been on the market for a comparable time to the ZBOX BI323.
Amongst similar types of personal computer the worst storage speed is HDD.