What are the differences between the two PCI-e slots on my graphics card?

[bishopkiean24]

I recently purchased an MSI GeForce GTX 1080 DirectX 12 GTX 1080 GAMING X 8G 8GB 256-Bit GDDR5X PCI Express 3.0 x16 HDCP Ready SLI Support ATX Video Card
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https://m.newegg.ca/products/N82E16814127943?_ga=2.154301112.187132976.1512539003-1482220267.1511532027&_gac=1.261916543.1511537985.CjwKCAiAo9_QBRACEiwASknDwbA14bbe20S_9wbl_oq18F6wJROXVIrk_MDg-5e44P4RN8zcudqzEhoClRIQAvD_BwE
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As well as an MSI Z270 GAMING M5 LGA 1151 Intel Z270 HDMI SATA 6Gb/s USB 3.1 ATX Motherboards - Intel motherboard
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https://m.newegg.ca/products/N82E16813130970?_ga=2.220879384.187132976.1512539003-1482220267.1511532027&_gac=1.89951977.1511537985.CjwKCAiAo9_QBRACEiwASknDwbA14bbe20S_9wbl_oq18F6wJROXVIrk_MDg-5e44P4RN8zcudqzEhoClRIQAvD_BwE
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So I was wondering what the difference is between the connections on the graphics card; it seems as though there is a PCI-e x1 slot at the top of the graphics card as well as the expected PCI-e x16 at the bottom of the graphics card. I do not know what the uses are for what seems to be a PCI-e x1 since it already contains a PCI-e x16.

I will be using the PCI-e x16 either way but I would like to learn about this so if someone could help it would be much appreciated.

 

[YoAndy]

The ones on top they are not PCI-e slots, they are used for SLI (connecting 2 or more cards together using the SLI bridge) The one on the bottom is for connecting the graphics card to the motherboard.

 

[bishopkiean24]

Ok dope, haha it was just something I was wondering about, but now I know. Thank you for the answer.

 

[YoAndy]

Glad to help.