Motherboard M2 key A socket

[Kisianik]

Hi

I am getting HP Pavilion for my relative (easy way, no time for building, geting older I think) and it has Key A M2 socket on MOBO and no explanation what it is for.
I know that:
Key M, Key B and Key B+M are for SSDs. Key E is for networking cards.
What about Key A? What it is for?
And if you can, can you provide a link to any hardware for this KEY A Socket - it would be easier to look for more by association - so fa I failed to do so...

Appreciate in advance as usual for any suggestions provided.

 

[rgd1101]

What is the exact model of this pavilion?

 

[rgd1101]

https://en.wikipedia.org/wiki/M.2#Form_factors_and_keying

 

[ko888]

HP used it for WiFi or WiFi + Bluetooth cards:

https://www.amazon.com/Doubleshot-Wireless-AC-Bluetooth-Wireless-Network/dp/B00VQF1IHW

 

[Kisianik]

What is the exact model of this pavilion?

HP Pavilion 570-p020

HP manuals are crap, the worst I ever seen.

 

[rgd1101]

https://support.hp.com/us-en/document/c05408472
https://support.hp.com/us-en/document/c05382582
it got 2 m.2, 1 for ssd, 1 for wlan

 

[Kisianik]

https://support.hp.com/us-en/document/c05408472
https://support.hp.com/us-en/document/c05382582
it got 2 m.2, 1 for ssd, 1 for wlan

I have seen those 2 links already. So Key A is for networking as well as Key E? Oh well, no use for me then.
Just M2 Key M is usable.

Thanks

 

[Kisianik]

rdg1101 and ko888 both provided Best Answer, so I would give it to ko888 since he only has an Authority Badge - fair enough?