Second SSD question

[Relp]

Ok I am not that savvy on up to date tech as I should be here. The last tower I built ran like two120 gig hdds , after that I had a Dell "just a old stuido XPS.  Now I could not afford to build "haven't built one in years anyhow and small things are harder to see the older you get lol" or buy a new tower and mine was so out of date. My son wanted to get me a new computer for gaming so he bought me this one which currently has a 120 ssd and a 1 TB hhd. One of the things I want to do before updating the graphics card is add a second 1 TB ssd in this tower and keep both my current storage devices. This way I will have the 120  ssd just for my system boot, a 1 TB ssd for my games then the standard 1 TB hhd for any files such as pictures, music etc. So my question is can this be done and will adding the second ssd be faster than running all my games off of the standard hhd? My current system specs below.

 

OS Name    Microsoft Windows 10 Home
Version    10.0.16299 Build 16299
Other OS Description     Not Available
OS Manufacturer    Microsoft Corporation
System Type    x64-based PC
System SKU    SKU
Processor    Intel(R) Core(TM) i7-7700 CPU @ 3.60GHz, 3601 Mhz, 4 Core(s), 8 Logical Processor(s)
BIOS Version/Date    American Megatrends Inc. 3402, 7/5/2017
SMBIOS Version    3.0
Embedded Controller Version    255.255
BIOS Mode    UEFI
BaseBoard Manufacturer    Asus
BaseBoard Model    Not Available
BaseBoard Name    Base Board
Platform Role    Desktop
Secure Boot State    On
PCR7 Configuration    Binding Not Possible
Boot Device    \Device\HarddiskVolume1
Locale    United States
Hardware Abstraction Layer    Version = "10.0.16299.248"
Installed Physical Memory (RAM)    16.0 GB
Total Physical Memory    15.9 GB
Available Physical Memory    13.3 GB
Total Virtual Memory    18.8 GB
Available Virtual Memory    15.5 GB
Page File Space    2.88 GB

 

[ProjectBox153]

Sure, your games will be faster, but I don't think it'd be worth the money to get a 1TB SSD. I'd get a 2TB mechanical drive.