I purchased a newer model the 15cp something something, it has a slot for an ssd, and if you are using a hard disk it definitely has one. The envy also comes with an m.2 slot, if your local storage capacity is less than 256G from the original purchase, you are very likely to have the m.2 slot, however if not then you are most likely running of a hard disk. There is space underneath the case for the old sata style drive, however it does not come with a cable, and you would probably have to go out and buy one. Good luck!