My info comes from lurking on discord. The reason the X2 has USB ports and the X4 does not is the expense of chip required to support 4 M.2 + 4 USB ports is too high. I read on discord it was like $100 for the chip alone that would be required. Thus the USB ports did not make it into the X4.
Thanks this is helpful. I would probably pay an extra $100 for the 4x USB ports on the X4, but oh well.
Anyone received a shipment notification/tracking info?
Why would you do that when you can just get one for 30 bucks?
https://www.amazon.com/Inateck-Superspeed-Ports-PCI-Expansion/dp/B00FPIMICA/ref=zg_bs_229185_2?_encoding=UTF8&psc=1&refRID=T195ZQ898YCA5X65QFM1