Empty slot on my laptop mobo Acer Aspire

[manlvl2]

I have an Acer Aspire v3-731 4695. I believe the motherboard is
"Intel Motherboard 69N07NM14B04 NBRYR11001"

On the bottom under the RAM slots there is an empty space, I'm wondering what should go there, but i can't find/don't know how to find what it is.

Here's a Gyazo of it up close
https://gyazo.com/23f8c764597508c17cbc57b48653ade1

Here's the full mobo, best pic i could find online. Bottom left slot under the RAM

 

[MusenMouse]

I am going to guess it is a M.Sata connector for a SSD.

 

[manlvl2]

I am going to guess it is a M.Sata connector for a SSD.

Looks right.. Thank you