HP ML10 V2 - Internal Hard Drives?

Hi,

So im thinking of purchasing a HP ML10 V2 small tower server, 

I would like to know, can i install an internal drive such as a small SSD to use as the OS Drive as I would like to reserve the 4 main HDD Slots on the server for my storage drives.

If I can, how can I do this?

Thanks,
Arron