The HP ProBook 650 has an SSD storage medium which is better than most medium processor core laptops that have been on the market for a comparable time to it. Most similar spec notebook PCs that have been on the market for around the same time as it have an HDD storage medium. 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 portable PC's storage medium (SSD) is in fact the best storage medium amongst all portable PCs of this age and type.
Amongst similar types of portable PC the worst storage medium is HDD.
There are a number of other portable PCs that have an SSD storage media currently available which you might want to consider including a cheaper portable PC such as the Z30[pl_2917671_price], or the Z30[pl_2917671_price] both from Toshiba or the DELL Latitude 14 E7450[plb_2882103_price] or you might consider a better rated portable PC such as the Satellite Z30[pl_2363540_price], or the Satellite Z30[pl_2363540_price] both from Toshiba.
If you want a laptop with a better storage medium then you might also want to consider the DELL Latitude 14 E7450[plb_2882106_price] (SSD).