Question Can I get 2 M.2 SSDs in my PC and if yes will it affect the system's performance?

[SneakyGuy]

So, I'm a video editor and I want to upgrade my PC. I'm looking at the 7950x3d and a Gigabyte X670 GAMING X AX V2 with 64GBs of ram. I already have a Samsung 990 Pro in my current PC, which is 2TBs and want add another one in the new PC. I also have a 3070ti that I'm actually going to keep cause I got it last year and I think it's good enough for now. I'm not sure if that affects the performance of the drives. I've got a 650watt PSU that I'm keeping aswell, cause from what I calculated for the wattage it should be enough for my new PC. So my main question is, will having 2 x M.2s affect the performance of them and if they're good, then in which slots should I put them in?

 

[Lafong]

Boot drive normally would go to the M.2 port closest to the CPU.

 

[SneakyGuy]

Boot drive normally would go to the M.2 port closest to the CPU.

I want to put a second one in so what slot should the second one go in and will it affect performance?

 

[SkyNetRising]

Can I get 2 M.2 SSDs in my PC and if yes will it affect the system's performance?

Motherboard has 4 M.2 slots. So you can have up to 4 M.2 drives.
With additional PCIE M.2 adapter you could install even more M.2 drives (max 2 more).

will having 2 x M.2s affect the performance of them and if they're good, then in which slots should I put them in?

Having more M.2 drives doesn't impact system performance.

 

[MnsoonMally]

To understand this better, you need to look at the architecture of the CPU, and the chipset you are using, particularly for the PCIe5.0 and PCIe4.0 lanes used.

M.2 storage, takes 4 lanes.

The main conflict that can be found, potentially, is when M.2 usage takes lanes from the GPU.

If you can mount 2 x M.2 slots WITHOUT taking anything from what the GPU uses - the no, you won't affect performance of the system.