Adding an SSD and keep existing hdd

[tonyVstone]

I currently have a 1TB internal hard drive in my laptop.  I would like to install a  Samsung 970 EVO SSD 1TB - M.2 NVMe Interface Internal Solid State Drive and keep my 1TB HDD.  Would this be possible?  Do I have the space to keep both installed in my laptop or do I have to choose just one?  I would like to use the SSD as my boot drive and keep the HHD as a backup storage drive.  I can't seem to find a straight forward answer online.  Also is there anything else I would need for the installation besides the SSD, like any additional cables or a flash drive to clone my operating system?

I would appreciate any help, thanks.  

[banhien]

@tonyVstone 

HP Envy - 17m-ael11dx is an invalid model/product. What is it ? Is it an HP Envy - 17m-ae011dx  machine ? its specs

             https://support.hp.com/au-en/document/c05573705

If yes, you can add M.2 NVMe SSD to it using

               https://www.samsung.com/au/memory-storage/970-evo-nvme-m2-ssd/MZ-V7E2T0BW/

               https://www.crucial.com/products/ssd/crucial-p2-ssd

          Or similar from reputable vendors.

Regards.