The EliteBook 850 G2 has an SSD storage medium which is better than the HDD storage medium found on most portable PCs of a comparable age and spec to it. Solid State Drives (SSD) store data in semiconductors on a circuit board rather than using magnetic or optical media. Solid State Drives have no moving parts which makes them very fast and reliable.
This notebook PC's storage medium (SSD) is actually the best storage medium across all portable PCs of this type and age.
Across comparable types of notebook PC the worst storage medium is HDD.
It may also be worth considering one of the alternative notebook PCs that have an SSD storage media currently available including the Elitebook 1040 G2[pl_2951226_price], the EliteBook 850[pl_2783808_price], or the Elitebook 1040 G2[pl_2951226_price] all from HP which is cheaper.
Notebook PCs with a better storage medium that might be worth considering include the Toshiba Tecra Z50[plb_2090365_price] (SSD).