Wireless AC Speed for SP4

[SilverRings]

I have been searching online to try and find the number of antennas or the wireless AC speed at which the SP4 uses. Can't seem to find anything. Do you all have any links that show it?

 

[SilverRings]

I found it from the IFixIt.com teardown.
Marvell - Wireless - Avastar - 88W8897