Question about Samsung 980 Pro

The P50 says:
Up to 3 drives: 2 x 2.5" bays (one of which is suitable for 2 x M.2 SATA or 2 x PCIe drives).
Raid 0, Raid 1

So it definitely fits. And if you don't have a RAID, you can install it as a second SSD.
I assume you have a 2.5" SSD. But quickly check in the "Device Manager" how many drives are installed.

Samsung Electronics GmbH
Hello,
Thank you very much for your request.
If your PC has a free M.2 slot, you can use this SSD.
However, in order to use the full performance of the SSD, the M.2 slot should have PCIe 4.0 with 4 lanes.
If in doubt, please check directly with the device manufacturer.
To find an alternative SSD for your motherboard, you can easily use the "SSD Configurator" on the Samsung homepage.
With a few short questions and in just a few minutes, we will find the right SSD for you.
To do this, please go directly to the Samsung homepage, place the mouse pointer over the category "Computer", which is listed in the upper part of the screen.
Under the category "Recommended" you will find the "SSD Configurator", which you should select.
Alternatively, you can find the "SSD Configurator" by simply entering "Samsung - Which SSD is right for me?" into a search engine.
On the following pages you will be asked about your system and your personal requirements in order to find the right product for you.
Best regards from Schwalbach
Your Samsung Service Team