M.2 SSD Upgrade Question pci-e x2 or x4?

[Skorkiss]

Hello, I have HP OMEN 15-ce018ur and I whant to upgrade my laptop with SSD M.2. Now I have only 1TB HDD on board, so I want to add SSD M.2 as this laptop has M.2 connector.

Here is a question: does my 15-ce018ur supports PCI-e x2 or x4? And what kind of key it should be? M key M.2 SSD? or M&B key M.2 SSD?

[Huffer]

Here is the Manual:

Manual

Note the section beginning on p. 31...memory and hard drive and SSD are customer self-repair items so no worries about the warranty. Remove the back cover and see this inside:

M.2 slot in red

The M.2 slot is a Gen 3 x4 slot so it can run the best NVME SSDs on the market such as the Samsung Evo 970:

https://www.amazon.com/Samsung-970-EVO-500GB-MZ-V7E500BW/dp/B07BN4NJ2J/ref=sr_1_6?keywords=Evo+970+M...

These are going to be "M" keyed M.2 SSDs. The slot would accept B + M or M, but NVMEs are almost all M keyed. 

Post back if you need any more help and please accept as solution if this is the info you needed.