SATA vs SATA 'Express' connectors on Asus X99-AII

[eco_bach]

I notice in the schematics for my mobo that some SATA connectors are labelled SATA while some also have the 'Express' adjective.

I have a Samsung V-NAND 850 EVO SSD. Does it matter which mobo SATA connector I use?

 

[EarthDog]

Nope. Use the first sata port. Your manual tells you which one that is.