The HP Z240 has a faster storage speed than most new personal computers. This personal computer has an SSD storage medium, whereas most new comparable spec personal computers 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 across all new PCs.
An HDD storage medium is the worst storage speed across comparable types of personal computer.
Other SSD computers currently available that you might also want to look at include the Z240 ($1,187.90), or the Z240 ($1,632.86) both from HP or the Lenovo P310 which is cheaper.